Sum of first 2 natural numbers = (2 x (2+1))/2 = 3

Sum of first 3 natural numbers = (3 x (3+1))/2 = 6

Sum of first 4 natural numbers = (4 x (4+1))/2 = 10

Sum of first 5 natural numbers = (5 x (5+1))/2 = 15

Sum of first 6 natural numbers = (6 x (6+1))/2 = 21

Sum of first 7 natural numbers = (7 x (7+1))/2 = 28

Sum of first 8 natural numbers = (8 x (8+1))/2 = 36

Sum of first 9 natural numbers = (9 x (9+1))/2 = 45

Sum of first 10 natural numbers = (10 x (10+1))/2 = 55

Sum of first 11 natural numbers = (11 x (11+1))/2 = 66

Sum of first 12 natural numbers = (12 x (12+1))/2 = 78

Sum of first 13 natural numbers = (13 x (13+1))/2 = 91

Sum of first 14 natural numbers = (14 x (14+1))/2 = 105

Sum of first 15 natural numbers = (15 x (15+1))/2 = 120

Sum of first 16 natural numbers = (16 x (16+1))/2 = 136

Sum of first 17 natural numbers = (17 x (17+1))/2 = 153

Sum of first 18 natural numbers = (18 x (18+1))/2 = 171

Sum of first 19 natural numbers = (19 x (19+1))/2 = 190

Sum of first 20 natural numbers = (20 x (20+1))/2 = 210

Sum of first 21 natural numbers = (21 x (21+1))/2 = 231

Sum of first 22 natural numbers = (22 x (22+1))/2 = 253

Sum of first 23 natural numbers = (23 x (23+1))/2 = 276

Sum of first 24 natural numbers = (24 x (24+1))/2 = 300

Sum of first 25 natural numbers = (25 x (25+1))/2 = 325

Sum of first 26 natural numbers = (26 x (26+1))/2 = 351

Sum of first 27 natural numbers = (27 x (27+1))/2 = 378

Sum of first 28 natural numbers = (28 x (28+1))/2 = 406

Sum of first 29 natural numbers = (29 x (29+1))/2 = 435

Sum of first 30 natural numbers = (30 x (30+1))/2 = 465

Sum of first 31 natural numbers = (31 x (31+1))/2 = 496

Sum of first 32 natural numbers = (32 x (32+1))/2 = 528

Sum of first 33 natural numbers = (33 x (33+1))/2 = 561

Sum of first 34 natural numbers = (34 x (34+1))/2 = 595

Sum of first 35 natural numbers = (35 x (35+1))/2 = 630

Sum of first 36 natural numbers = (36 x (36+1))/2 = 666

Sum of first 37 natural numbers = (37 x (37+1))/2 = 703

Sum of first 38 natural numbers = (38 x (38+1))/2 = 741

Sum of first 39 natural numbers = (39 x (39+1))/2 = 780

Sum of first 40 natural numbers = (40 x (40+1))/2 = 820

Sum of first 41 natural numbers = (41 x (41+1))/2 = 861

Sum of first 42 natural numbers = (42 x (42+1))/2 = 903

Sum of first 43 natural numbers = (43 x (43+1))/2 = 946

Sum of first 44 natural numbers = (44 x (44+1))/2 = 990

Sum of first 45 natural numbers = (45 x (45+1))/2 = 1035

Sum of first 46 natural numbers = (46 x (46+1))/2 = 1081

Sum of first 47 natural numbers = (47 x (47+1))/2 = 1128

Sum of first 48 natural numbers = (48 x (48+1))/2 = 1176

Sum of first 49 natural numbers = (49 x (49+1))/2 = 1225

Sum of first 50 natural numbers = (50 x (50+1))/2 = 1275

Sum of first 51 natural numbers = (51 x (51+1))/2 = 1326

Sum of first 52 natural numbers = (52 x (52+1))/2 = 1378

Sum of first 53 natural numbers = (53 x (53+1))/2 = 1431

Sum of first 54 natural numbers = (54 x (54+1))/2 = 1485

Sum of first 55 natural numbers = (55 x (55+1))/2 = 1540

Sum of first 56 natural numbers = (56 x (56+1))/2 = 1596

Sum of first 57 natural numbers = (57 x (57+1))/2 = 1653

Sum of first 58 natural numbers = (58 x (58+1))/2 = 1711

Sum of first 59 natural numbers = (59 x (59+1))/2 = 1770

Sum of first 60 natural numbers = (60 x (60+1))/2 = 1830

Sum of first 61 natural numbers = (61 x (61+1))/2 = 1891

Sum of first 62 natural numbers = (62 x (62+1))/2 = 1953

Sum of first 63 natural numbers = (63 x (63+1))/2 = 2016

Sum of first 64 natural numbers = (64 x (64+1))/2 = 2080

Sum of first 65 natural numbers = (65 x (65+1))/2 = 2145

Sum of first 66 natural numbers = (66 x (66+1))/2 = 2211

Sum of first 67 natural numbers = (67 x (67+1))/2 = 2278

Sum of first 68 natural numbers = (68 x (68+1))/2 = 2346

Sum of first 69 natural numbers = (69 x (69+1))/2 = 2415

Sum of first 70 natural numbers = (70 x (70+1))/2 = 2485

Sum of first 71 natural numbers = (71 x (71+1))/2 = 2556

Sum of first 72 natural numbers = (72 x (72+1))/2 = 2628

Sum of first 73 natural numbers = (73 x (73+1))/2 = 2701

Sum of first 74 natural numbers = (74 x (74+1))/2 = 2775

Sum of first 75 natural numbers = (75 x (75+1))/2 = 2850

Sum of first 76 natural numbers = (76 x (76+1))/2 = 2926

Sum of first 77 natural numbers = (77 x (77+1))/2 = 3003

Sum of first 78 natural numbers = (78 x (78+1))/2 = 3081

Sum of first 79 natural numbers = (79 x (79+1))/2 = 3160

Sum of first 80 natural numbers = (80 x (80+1))/2 = 3240

Sum of first 81 natural numbers = (81 x (81+1))/2 = 3321

Sum of first 82 natural numbers = (82 x (82+1))/2 = 3403

Sum of first 83 natural numbers = (83 x (83+1))/2 = 3486

Sum of first 84 natural numbers = (84 x (84+1))/2 = 3570

Sum of first 85 natural numbers = (85 x (85+1))/2 = 3655

Sum of first 86 natural numbers = (86 x (86+1))/2 = 3741

Sum of first 87 natural numbers = (87 x (87+1))/2 = 3828

Sum of first 88 natural numbers = (88 x (88+1))/2 = 3916

Sum of first 89 natural numbers = (89 x (89+1))/2 = 4005

Sum of first 90 natural numbers = (90 x (90+1))/2 = 4095

Sum of first 91 natural numbers = (91 x (91+1))/2 = 4186

Sum of first 92 natural numbers = (92 x (92+1))/2 = 4278

Sum of first 93 natural numbers = (93 x (93+1))/2 = 4371

Sum of first 94 natural numbers = (94 x (94+1))/2 = 4465

Sum of first 95 natural numbers = (95 x (95+1))/2 = 4560

Sum of first 96 natural numbers = (96 x (96+1))/2 = 4656

Sum of first 97 natural numbers = (97 x (97+1))/2 = 4753

Sum of first 98 natural numbers = (98 x (98+1))/2 = 4851

Sum of first 99 natural numbers = (99 x (99+1))/2 = 4950

Sum of first 100 natural numbers = (100 x (100+1))/2 = 5050

Sum of first 101 natural numbers = (101 x (101+1))/2 = 5151

Sum of first 102 natural numbers = (102 x (102+1))/2 = 5253

Sum of first 103 natural numbers = (103 x (103+1))/2 = 5356

Sum of first 104 natural numbers = (104 x (104+1))/2 = 5460

Sum of first 105 natural numbers = (105 x (105+1))/2 = 5565

Sum of first 106 natural numbers = (106 x (106+1))/2 = 5671

Sum of first 107 natural numbers = (107 x (107+1))/2 = 5778

Sum of first 108 natural numbers = (108 x (108+1))/2 = 5886

Sum of first 109 natural numbers = (109 x (109+1))/2 = 5995

Sum of first 110 natural numbers = (110 x (110+1))/2 = 6105

Sum of first 111 natural numbers = (111 x (111+1))/2 = 6216

Sum of first 112 natural numbers = (112 x (112+1))/2 = 6328

Sum of first 113 natural numbers = (113 x (113+1))/2 = 6441

Sum of first 114 natural numbers = (114 x (114+1))/2 = 6555

Sum of first 115 natural numbers = (115 x (115+1))/2 = 6670

Sum of first 116 natural numbers = (116 x (116+1))/2 = 6786

Sum of first 117 natural numbers = (117 x (117+1))/2 = 6903

Sum of first 118 natural numbers = (118 x (118+1))/2 = 7021

Sum of first 119 natural numbers = (119 x (119+1))/2 = 7140

Sum of first 120 natural numbers = (120 x (120+1))/2 = 7260

Sum of first 121 natural numbers = (121 x (121+1))/2 = 7381

Sum of first 122 natural numbers = (122 x (122+1))/2 = 7503

Sum of first 123 natural numbers = (123 x (123+1))/2 = 7626

Sum of first 124 natural numbers = (124 x (124+1))/2 = 7750

Sum of first 125 natural numbers = (125 x (125+1))/2 = 7875

Sum of first 126 natural numbers = (126 x (126+1))/2 = 8001

Sum of first 127 natural numbers = (127 x (127+1))/2 = 8128

Sum of first 128 natural numbers = (128 x (128+1))/2 = 8256

Sum of first 129 natural numbers = (129 x (129+1))/2 = 8385

Sum of first 130 natural numbers = (130 x (130+1))/2 = 8515

Sum of first 131 natural numbers = (131 x (131+1))/2 = 8646

Sum of first 132 natural numbers = (132 x (132+1))/2 = 8778

Sum of first 133 natural numbers = (133 x (133+1))/2 = 8911

Sum of first 134 natural numbers = (134 x (134+1))/2 = 9045

Sum of first 135 natural numbers = (135 x (135+1))/2 = 9180

Sum of first 136 natural numbers = (136 x (136+1))/2 = 9316

Sum of first 137 natural numbers = (137 x (137+1))/2 = 9453

Sum of first 138 natural numbers = (138 x (138+1))/2 = 9591

Sum of first 139 natural numbers = (139 x (139+1))/2 = 9730

Sum of first 140 natural numbers = (140 x (140+1))/2 = 9870

Sum of first 141 natural numbers = (141 x (141+1))/2 = 10011

Sum of first 142 natural numbers = (142 x (142+1))/2 = 10153

Sum of first 143 natural numbers = (143 x (143+1))/2 = 10296

Sum of first 144 natural numbers = (144 x (144+1))/2 = 10440

Sum of first 145 natural numbers = (145 x (145+1))/2 = 10585

Sum of first 146 natural numbers = (146 x (146+1))/2 = 10731

Sum of first 147 natural numbers = (147 x (147+1))/2 = 10878

Sum of first 148 natural numbers = (148 x (148+1))/2 = 11026

Sum of first 149 natural numbers = (149 x (149+1))/2 = 11175

Sum of first 150 natural numbers = (150 x (150+1))/2 = 11325

Sum of first 151 natural numbers = (151 x (151+1))/2 = 11476

Sum of first 152 natural numbers = (152 x (152+1))/2 = 11628

Sum of first 153 natural numbers = (153 x (153+1))/2 = 11781

Sum of first 154 natural numbers = (154 x (154+1))/2 = 11935

Sum of first 155 natural numbers = (155 x (155+1))/2 = 12090

Sum of first 156 natural numbers = (156 x (156+1))/2 = 12246

Sum of first 157 natural numbers = (157 x (157+1))/2 = 12403

Sum of first 158 natural numbers = (158 x (158+1))/2 = 12561

Sum of first 159 natural numbers = (159 x (159+1))/2 = 12720

Sum of first 160 natural numbers = (160 x (160+1))/2 = 12880

Sum of first 161 natural numbers = (161 x (161+1))/2 = 13041

Sum of first 162 natural numbers = (162 x (162+1))/2 = 13203

Sum of first 163 natural numbers = (163 x (163+1))/2 = 13366

Sum of first 164 natural numbers = (164 x (164+1))/2 = 13530

Sum of first 165 natural numbers = (165 x (165+1))/2 = 13695

Sum of first 166 natural numbers = (166 x (166+1))/2 = 13861

Sum of first 167 natural numbers = (167 x (167+1))/2 = 14028

Sum of first 168 natural numbers = (168 x (168+1))/2 = 14196

Sum of first 169 natural numbers = (169 x (169+1))/2 = 14365

Sum of first 170 natural numbers = (170 x (170+1))/2 = 14535

Sum of first 171 natural numbers = (171 x (171+1))/2 = 14706

Sum of first 172 natural numbers = (172 x (172+1))/2 = 14878

Sum of first 173 natural numbers = (173 x (173+1))/2 = 15051

Sum of first 174 natural numbers = (174 x (174+1))/2 = 15225

Sum of first 175 natural numbers = (175 x (175+1))/2 = 15400

Sum of first 176 natural numbers = (176 x (176+1))/2 = 15576

Sum of first 177 natural numbers = (177 x (177+1))/2 = 15753

Sum of first 178 natural numbers = (178 x (178+1))/2 = 15931

Sum of first 179 natural numbers = (179 x (179+1))/2 = 16110

Sum of first 180 natural numbers = (180 x (180+1))/2 = 16290

Sum of first 181 natural numbers = (181 x (181+1))/2 = 16471

Sum of first 182 natural numbers = (182 x (182+1))/2 = 16653

Sum of first 183 natural numbers = (183 x (183+1))/2 = 16836

Sum of first 184 natural numbers = (184 x (184+1))/2 = 17020

Sum of first 185 natural numbers = (185 x (185+1))/2 = 17205

Sum of first 186 natural numbers = (186 x (186+1))/2 = 17391

Sum of first 187 natural numbers = (187 x (187+1))/2 = 17578

Sum of first 188 natural numbers = (188 x (188+1))/2 = 17766

Sum of first 189 natural numbers = (189 x (189+1))/2 = 17955

Sum of first 190 natural numbers = (190 x (190+1))/2 = 18145

Sum of first 191 natural numbers = (191 x (191+1))/2 = 18336

Sum of first 192 natural numbers = (192 x (192+1))/2 = 18528

Sum of first 193 natural numbers = (193 x (193+1))/2 = 18721

Sum of first 194 natural numbers = (194 x (194+1))/2 = 18915

Sum of first 195 natural numbers = (195 x (195+1))/2 = 19110

Sum of first 196 natural numbers = (196 x (196+1))/2 = 19306

Sum of first 197 natural numbers = (197 x (197+1))/2 = 19503

Sum of first 198 natural numbers = (198 x (198+1))/2 = 19701

Sum of first 199 natural numbers = (199 x (199+1))/2 = 19900

Sum of first 200 natural numbers = (200 x (200+1))/2 = 20100

Sum of first 201 natural numbers = (201 x (201+1))/2 = 20301

Sum of first 202 natural numbers = (202 x (202+1))/2 = 20503

Sum of first 203 natural numbers = (203 x (203+1))/2 = 20706

Sum of first 204 natural numbers = (204 x (204+1))/2 = 20910

Sum of first 205 natural numbers = (205 x (205+1))/2 = 21115

Sum of first 206 natural numbers = (206 x (206+1))/2 = 21321

Sum of first 207 natural numbers = (207 x (207+1))/2 = 21528

Sum of first 208 natural numbers = (208 x (208+1))/2 = 21736

Sum of first 209 natural numbers = (209 x (209+1))/2 = 21945

Sum of first 210 natural numbers = (210 x (210+1))/2 = 22155

Sum of first 211 natural numbers = (211 x (211+1))/2 = 22366

Sum of first 212 natural numbers = (212 x (212+1))/2 = 22578

Sum of first 213 natural numbers = (213 x (213+1))/2 = 22791

Sum of first 214 natural numbers = (214 x (214+1))/2 = 23005

Sum of first 215 natural numbers = (215 x (215+1))/2 = 23220

Sum of first 216 natural numbers = (216 x (216+1))/2 = 23436

Sum of first 217 natural numbers = (217 x (217+1))/2 = 23653

Sum of first 218 natural numbers = (218 x (218+1))/2 = 23871

Sum of first 219 natural numbers = (219 x (219+1))/2 = 24090

Sum of first 220 natural numbers = (220 x (220+1))/2 = 24310

Sum of first 221 natural numbers = (221 x (221+1))/2 = 24531

Sum of first 222 natural numbers = (222 x (222+1))/2 = 24753

Sum of first 223 natural numbers = (223 x (223+1))/2 = 24976

Sum of first 224 natural numbers = (224 x (224+1))/2 = 25200

Sum of first 225 natural numbers = (225 x (225+1))/2 = 25425

Sum of first 226 natural numbers = (226 x (226+1))/2 = 25651

Sum of first 227 natural numbers = (227 x (227+1))/2 = 25878

Sum of first 228 natural numbers = (228 x (228+1))/2 = 26106

Sum of first 229 natural numbers = (229 x (229+1))/2 = 26335

Sum of first 230 natural numbers = (230 x (230+1))/2 = 26565

Sum of first 231 natural numbers = (231 x (231+1))/2 = 26796

Sum of first 232 natural numbers = (232 x (232+1))/2 = 27028

Sum of first 233 natural numbers = (233 x (233+1))/2 = 27261

Sum of first 234 natural numbers = (234 x (234+1))/2 = 27495

Sum of first 235 natural numbers = (235 x (235+1))/2 = 27730

Sum of first 236 natural numbers = (236 x (236+1))/2 = 27966

Sum of first 237 natural numbers = (237 x (237+1))/2 = 28203

Sum of first 238 natural numbers = (238 x (238+1))/2 = 28441

Sum of first 239 natural numbers = (239 x (239+1))/2 = 28680

Sum of first 240 natural numbers = (240 x (240+1))/2 = 28920

Sum of first 241 natural numbers = (241 x (241+1))/2 = 29161

Sum of first 242 natural numbers = (242 x (242+1))/2 = 29403

Sum of first 243 natural numbers = (243 x (243+1))/2 = 29646

Sum of first 244 natural numbers = (244 x (244+1))/2 = 29890

Sum of first 245 natural numbers = (245 x (245+1))/2 = 30135

Sum of first 246 natural numbers = (246 x (246+1))/2 = 30381

Sum of first 247 natural numbers = (247 x (247+1))/2 = 30628

Sum of first 248 natural numbers = (248 x (248+1))/2 = 30876

Sum of first 249 natural numbers = (249 x (249+1))/2 = 31125

Sum of first 250 natural numbers = (250 x (250+1))/2 = 31375

Sum of first 251 natural numbers = (251 x (251+1))/2 = 31626

Sum of first 252 natural numbers = (252 x (252+1))/2 = 31878

Sum of first 253 natural numbers = (253 x (253+1))/2 = 32131

Sum of first 254 natural numbers = (254 x (254+1))/2 = 32385

Sum of first 255 natural numbers = (255 x (255+1))/2 = 32640

Sum of first 256 natural numbers = (256 x (256+1))/2 = 32896

Sum of first 257 natural numbers = (257 x (257+1))/2 = 33153

Sum of first 258 natural numbers = (258 x (258+1))/2 = 33411

Sum of first 259 natural numbers = (259 x (259+1))/2 = 33670

Sum of first 260 natural numbers = (260 x (260+1))/2 = 33930

Sum of first 261 natural numbers = (261 x (261+1))/2 = 34191

Sum of first 262 natural numbers = (262 x (262+1))/2 = 34453

Sum of first 263 natural numbers = (263 x (263+1))/2 = 34716

Sum of first 264 natural numbers = (264 x (264+1))/2 = 34980

Sum of first 265 natural numbers = (265 x (265+1))/2 = 35245

Sum of first 266 natural numbers = (266 x (266+1))/2 = 35511

Sum of first 267 natural numbers = (267 x (267+1))/2 = 35778

Sum of first 268 natural numbers = (268 x (268+1))/2 = 36046

Sum of first 269 natural numbers = (269 x (269+1))/2 = 36315

Sum of first 270 natural numbers = (270 x (270+1))/2 = 36585

Sum of first 271 natural numbers = (271 x (271+1))/2 = 36856

Sum of first 272 natural numbers = (272 x (272+1))/2 = 37128

Sum of first 273 natural numbers = (273 x (273+1))/2 = 37401

Sum of first 274 natural numbers = (274 x (274+1))/2 = 37675

Sum of first 275 natural numbers = (275 x (275+1))/2 = 37950

Sum of first 276 natural numbers = (276 x (276+1))/2 = 38226

Sum of first 277 natural numbers = (277 x (277+1))/2 = 38503

Sum of first 278 natural numbers = (278 x (278+1))/2 = 38781

Sum of first 279 natural numbers = (279 x (279+1))/2 = 39060

Sum of first 280 natural numbers = (280 x (280+1))/2 = 39340

Sum of first 281 natural numbers = (281 x (281+1))/2 = 39621

Sum of first 282 natural numbers = (282 x (282+1))/2 = 39903

Sum of first 283 natural numbers = (283 x (283+1))/2 = 40186

Sum of first 284 natural numbers = (284 x (284+1))/2 = 40470

Sum of first 285 natural numbers = (285 x (285+1))/2 = 40755

Sum of first 286 natural numbers = (286 x (286+1))/2 = 41041

Sum of first 287 natural numbers = (287 x (287+1))/2 = 41328

Sum of first 288 natural numbers = (288 x (288+1))/2 = 41616

Sum of first 289 natural numbers = (289 x (289+1))/2 = 41905

Sum of first 290 natural numbers = (290 x (290+1))/2 = 42195

Sum of first 291 natural numbers = (291 x (291+1))/2 = 42486

Sum of first 292 natural numbers = (292 x (292+1))/2 = 42778

Sum of first 293 natural numbers = (293 x (293+1))/2 = 43071

Sum of first 294 natural numbers = (294 x (294+1))/2 = 43365

Sum of first 295 natural numbers = (295 x (295+1))/2 = 43660

Sum of first 296 natural numbers = (296 x (296+1))/2 = 43956

Sum of first 297 natural numbers = (297 x (297+1))/2 = 44253

Sum of first 298 natural numbers = (298 x (298+1))/2 = 44551

Sum of first 299 natural numbers = (299 x (299+1))/2 = 44850

Sum of first 300 natural numbers = (300 x (300+1))/2 = 45150

Sum of first 301 natural numbers = (301 x (301+1))/2 = 45451

Sum of first 302 natural numbers = (302 x (302+1))/2 = 45753

Sum of first 303 natural numbers = (303 x (303+1))/2 = 46056

Sum of first 304 natural numbers = (304 x (304+1))/2 = 46360

Sum of first 305 natural numbers = (305 x (305+1))/2 = 46665

Sum of first 306 natural numbers = (306 x (306+1))/2 = 46971

Sum of first 307 natural numbers = (307 x (307+1))/2 = 47278

Sum of first 308 natural numbers = (308 x (308+1))/2 = 47586

Sum of first 309 natural numbers = (309 x (309+1))/2 = 47895

Sum of first 310 natural numbers = (310 x (310+1))/2 = 48205

Sum of first 311 natural numbers = (311 x (311+1))/2 = 48516

Sum of first 312 natural numbers = (312 x (312+1))/2 = 48828

Sum of first 313 natural numbers = (313 x (313+1))/2 = 49141

Sum of first 314 natural numbers = (314 x (314+1))/2 = 49455

Sum of first 315 natural numbers = (315 x (315+1))/2 = 49770

Sum of first 316 natural numbers = (316 x (316+1))/2 = 50086

Sum of first 317 natural numbers = (317 x (317+1))/2 = 50403

Sum of first 318 natural numbers = (318 x (318+1))/2 = 50721

Sum of first 319 natural numbers = (319 x (319+1))/2 = 51040

Sum of first 320 natural numbers = (320 x (320+1))/2 = 51360

Sum of first 321 natural numbers = (321 x (321+1))/2 = 51681

Sum of first 322 natural numbers = (322 x (322+1))/2 = 52003

Sum of first 323 natural numbers = (323 x (323+1))/2 = 52326

Sum of first 324 natural numbers = (324 x (324+1))/2 = 52650

Sum of first 325 natural numbers = (325 x (325+1))/2 = 52975

Sum of first 326 natural numbers = (326 x (326+1))/2 = 53301

Sum of first 327 natural numbers = (327 x (327+1))/2 = 53628

Sum of first 328 natural numbers = (328 x (328+1))/2 = 53956

Sum of first 329 natural numbers = (329 x (329+1))/2 = 54285

Sum of first 330 natural numbers = (330 x (330+1))/2 = 54615

Sum of first 331 natural numbers = (331 x (331+1))/2 = 54946

Sum of first 332 natural numbers = (332 x (332+1))/2 = 55278

Sum of first 333 natural numbers = (333 x (333+1))/2 = 55611

Sum of first 334 natural numbers = (334 x (334+1))/2 = 55945

Sum of first 335 natural numbers = (335 x (335+1))/2 = 56280

Sum of first 336 natural numbers = (336 x (336+1))/2 = 56616

Sum of first 337 natural numbers = (337 x (337+1))/2 = 56953

Sum of first 338 natural numbers = (338 x (338+1))/2 = 57291

Sum of first 339 natural numbers = (339 x (339+1))/2 = 57630

Sum of first 340 natural numbers = (340 x (340+1))/2 = 57970

Sum of first 341 natural numbers = (341 x (341+1))/2 = 58311

Sum of first 342 natural numbers = (342 x (342+1))/2 = 58653

Sum of first 343 natural numbers = (343 x (343+1))/2 = 58996

Sum of first 344 natural numbers = (344 x (344+1))/2 = 59340

Sum of first 345 natural numbers = (345 x (345+1))/2 = 59685

Sum of first 346 natural numbers = (346 x (346+1))/2 = 60031

Sum of first 347 natural numbers = (347 x (347+1))/2 = 60378

Sum of first 348 natural numbers = (348 x (348+1))/2 = 60726

Sum of first 349 natural numbers = (349 x (349+1))/2 = 61075

Sum of first 350 natural numbers = (350 x (350+1))/2 = 61425

Sum of first 351 natural numbers = (351 x (351+1))/2 = 61776

Sum of first 352 natural numbers = (352 x (352+1))/2 = 62128

Sum of first 353 natural numbers = (353 x (353+1))/2 = 62481

Sum of first 354 natural numbers = (354 x (354+1))/2 = 62835

Sum of first 355 natural numbers = (355 x (355+1))/2 = 63190

Sum of first 356 natural numbers = (356 x (356+1))/2 = 63546

Sum of first 357 natural numbers = (357 x (357+1))/2 = 63903

Sum of first 358 natural numbers = (358 x (358+1))/2 = 64261

Sum of first 359 natural numbers = (359 x (359+1))/2 = 64620

Sum of first 360 natural numbers = (360 x (360+1))/2 = 64980

Sum of first 361 natural numbers = (361 x (361+1))/2 = 65341

Sum of first 362 natural numbers = (362 x (362+1))/2 = 65703

Sum of first 363 natural numbers = (363 x (363+1))/2 = 66066

Sum of first 364 natural numbers = (364 x (364+1))/2 = 66430

Sum of first 365 natural numbers = (365 x (365+1))/2 = 66795

Sum of first 366 natural numbers = (366 x (366+1))/2 = 67161

Sum of first 367 natural numbers = (367 x (367+1))/2 = 67528

Sum of first 368 natural numbers = (368 x (368+1))/2 = 67896

Sum of first 369 natural numbers = (369 x (369+1))/2 = 68265

Sum of first 370 natural numbers = (370 x (370+1))/2 = 68635

Sum of first 371 natural numbers = (371 x (371+1))/2 = 69006

Sum of first 372 natural numbers = (372 x (372+1))/2 = 69378

Sum of first 373 natural numbers = (373 x (373+1))/2 = 69751

Sum of first 374 natural numbers = (374 x (374+1))/2 = 70125

Sum of first 375 natural numbers = (375 x (375+1))/2 = 70500

Sum of first 376 natural numbers = (376 x (376+1))/2 = 70876

Sum of first 377 natural numbers = (377 x (377+1))/2 = 71253

Sum of first 378 natural numbers = (378 x (378+1))/2 = 71631

Sum of first 379 natural numbers = (379 x (379+1))/2 = 72010

Sum of first 380 natural numbers = (380 x (380+1))/2 = 72390

Sum of first 381 natural numbers = (381 x (381+1))/2 = 72771

Sum of first 382 natural numbers = (382 x (382+1))/2 = 73153

Sum of first 383 natural numbers = (383 x (383+1))/2 = 73536

Sum of first 384 natural numbers = (384 x (384+1))/2 = 73920

Sum of first 385 natural numbers = (385 x (385+1))/2 = 74305

Sum of first 386 natural numbers = (386 x (386+1))/2 = 74691

Sum of first 387 natural numbers = (387 x (387+1))/2 = 75078

Sum of first 388 natural numbers = (388 x (388+1))/2 = 75466

Sum of first 389 natural numbers = (389 x (389+1))/2 = 75855

Sum of first 390 natural numbers = (390 x (390+1))/2 = 76245

Sum of first 391 natural numbers = (391 x (391+1))/2 = 76636

Sum of first 392 natural numbers = (392 x (392+1))/2 = 77028

Sum of first 393 natural numbers = (393 x (393+1))/2 = 77421

Sum of first 394 natural numbers = (394 x (394+1))/2 = 77815

Sum of first 395 natural numbers = (395 x (395+1))/2 = 78210

Sum of first 396 natural numbers = (396 x (396+1))/2 = 78606

Sum of first 397 natural numbers = (397 x (397+1))/2 = 79003

Sum of first 398 natural numbers = (398 x (398+1))/2 = 79401

Sum of first 399 natural numbers = (399 x (399+1))/2 = 79800

Sum of first 400 natural numbers = (400 x (400+1))/2 = 80200

Sum of first 401 natural numbers = (401 x (401+1))/2 = 80601

Sum of first 402 natural numbers = (402 x (402+1))/2 = 81003

Sum of first 403 natural numbers = (403 x (403+1))/2 = 81406

Sum of first 404 natural numbers = (404 x (404+1))/2 = 81810

Sum of first 405 natural numbers = (405 x (405+1))/2 = 82215

Sum of first 406 natural numbers = (406 x (406+1))/2 = 82621

Sum of first 407 natural numbers = (407 x (407+1))/2 = 83028

Sum of first 408 natural numbers = (408 x (408+1))/2 = 83436

Sum of first 409 natural numbers = (409 x (409+1))/2 = 83845

Sum of first 410 natural numbers = (410 x (410+1))/2 = 84255

Sum of first 411 natural numbers = (411 x (411+1))/2 = 84666

Sum of first 412 natural numbers = (412 x (412+1))/2 = 85078

Sum of first 413 natural numbers = (413 x (413+1))/2 = 85491

Sum of first 414 natural numbers = (414 x (414+1))/2 = 85905

Sum of first 415 natural numbers = (415 x (415+1))/2 = 86320

Sum of first 416 natural numbers = (416 x (416+1))/2 = 86736

Sum of first 417 natural numbers = (417 x (417+1))/2 = 87153

Sum of first 418 natural numbers = (418 x (418+1))/2 = 87571

Sum of first 419 natural numbers = (419 x (419+1))/2 = 87990

Sum of first 420 natural numbers = (420 x (420+1))/2 = 88410

Sum of first 421 natural numbers = (421 x (421+1))/2 = 88831

Sum of first 422 natural numbers = (422 x (422+1))/2 = 89253

Sum of first 423 natural numbers = (423 x (423+1))/2 = 89676

Sum of first 424 natural numbers = (424 x (424+1))/2 = 90100

Sum of first 425 natural numbers = (425 x (425+1))/2 = 90525

Sum of first 426 natural numbers = (426 x (426+1))/2 = 90951

Sum of first 427 natural numbers = (427 x (427+1))/2 = 91378

Sum of first 428 natural numbers = (428 x (428+1))/2 = 91806

Sum of first 429 natural numbers = (429 x (429+1))/2 = 92235

Sum of first 430 natural numbers = (430 x (430+1))/2 = 92665

Sum of first 431 natural numbers = (431 x (431+1))/2 = 93096

Sum of first 432 natural numbers = (432 x (432+1))/2 = 93528

Sum of first 433 natural numbers = (433 x (433+1))/2 = 93961

Sum of first 434 natural numbers = (434 x (434+1))/2 = 94395

Sum of first 435 natural numbers = (435 x (435+1))/2 = 94830

Sum of first 436 natural numbers = (436 x (436+1))/2 = 95266

Sum of first 437 natural numbers = (437 x (437+1))/2 = 95703

Sum of first 438 natural numbers = (438 x (438+1))/2 = 96141

Sum of first 439 natural numbers = (439 x (439+1))/2 = 96580

Sum of first 440 natural numbers = (440 x (440+1))/2 = 97020

Sum of first 441 natural numbers = (441 x (441+1))/2 = 97461

Sum of first 442 natural numbers = (442 x (442+1))/2 = 97903

Sum of first 443 natural numbers = (443 x (443+1))/2 = 98346

Sum of first 444 natural numbers = (444 x (444+1))/2 = 98790

Sum of first 445 natural numbers = (445 x (445+1))/2 = 99235

Sum of first 446 natural numbers = (446 x (446+1))/2 = 99681

Sum of first 447 natural numbers = (447 x (447+1))/2 = 100128

Sum of first 448 natural numbers = (448 x (448+1))/2 = 100576

Sum of first 449 natural numbers = (449 x (449+1))/2 = 101025

Sum of first 450 natural numbers = (450 x (450+1))/2 = 101475

Sum of first 451 natural numbers = (451 x (451+1))/2 = 101926

Sum of first 452 natural numbers = (452 x (452+1))/2 = 102378

Sum of first 453 natural numbers = (453 x (453+1))/2 = 102831

Sum of first 454 natural numbers = (454 x (454+1))/2 = 103285

Sum of first 455 natural numbers = (455 x (455+1))/2 = 103740

Sum of first 456 natural numbers = (456 x (456+1))/2 = 104196

Sum of first 457 natural numbers = (457 x (457+1))/2 = 104653

Sum of first 458 natural numbers = (458 x (458+1))/2 = 105111

Sum of first 459 natural numbers = (459 x (459+1))/2 = 105570

Sum of first 460 natural numbers = (460 x (460+1))/2 = 106030

Sum of first 461 natural numbers = (461 x (461+1))/2 = 106491

Sum of first 462 natural numbers = (462 x (462+1))/2 = 106953

Sum of first 463 natural numbers = (463 x (463+1))/2 = 107416

Sum of first 464 natural numbers = (464 x (464+1))/2 = 107880

Sum of first 465 natural numbers = (465 x (465+1))/2 = 108345

Sum of first 466 natural numbers = (466 x (466+1))/2 = 108811

Sum of first 467 natural numbers = (467 x (467+1))/2 = 109278

Sum of first 468 natural numbers = (468 x (468+1))/2 = 109746

Sum of first 469 natural numbers = (469 x (469+1))/2 = 110215

Sum of first 470 natural numbers = (470 x (470+1))/2 = 110685

Sum of first 471 natural numbers = (471 x (471+1))/2 = 111156

Sum of first 472 natural numbers = (472 x (472+1))/2 = 111628

Sum of first 473 natural numbers = (473 x (473+1))/2 = 112101

Sum of first 474 natural numbers = (474 x (474+1))/2 = 112575

Sum of first 475 natural numbers = (475 x (475+1))/2 = 113050

Sum of first 476 natural numbers = (476 x (476+1))/2 = 113526

Sum of first 477 natural numbers = (477 x (477+1))/2 = 114003

Sum of first 478 natural numbers = (478 x (478+1))/2 = 114481

Sum of first 479 natural numbers = (479 x (479+1))/2 = 114960

Sum of first 480 natural numbers = (480 x (480+1))/2 = 115440

Sum of first 481 natural numbers = (481 x (481+1))/2 = 115921

Sum of first 482 natural numbers = (482 x (482+1))/2 = 116403

Sum of first 483 natural numbers = (483 x (483+1))/2 = 116886

Sum of first 484 natural numbers = (484 x (484+1))/2 = 117370

Sum of first 485 natural numbers = (485 x (485+1))/2 = 117855

Sum of first 486 natural numbers = (486 x (486+1))/2 = 118341

Sum of first 487 natural numbers = (487 x (487+1))/2 = 118828

Sum of first 488 natural numbers = (488 x (488+1))/2 = 119316

Sum of first 489 natural numbers = (489 x (489+1))/2 = 119805

Sum of first 490 natural numbers = (490 x (490+1))/2 = 120295

Sum of first 491 natural numbers = (491 x (491+1))/2 = 120786

Sum of first 492 natural numbers = (492 x (492+1))/2 = 121278

Sum of first 493 natural numbers = (493 x (493+1))/2 = 121771

Sum of first 494 natural numbers = (494 x (494+1))/2 = 122265

Sum of first 495 natural numbers = (495 x (495+1))/2 = 122760

Sum of first 496 natural numbers = (496 x (496+1))/2 = 123256

Sum of first 497 natural numbers = (497 x (497+1))/2 = 123753

Sum of first 498 natural numbers = (498 x (498+1))/2 = 124251

Sum of first 499 natural numbers = (499 x (499+1))/2 = 124750

Sum of first 500 natural numbers = (500 x (500+1))/2 = 125250