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22! Factorial of 22

Value of 22! i.e, Factorial of 22 =
11240007277776076800
00



In general, the factorial of a number N = N*(N-1)*(N-2)....1
Factorial of a non-negative integer n is the product of all positive integers less than or equal to n. Factorials are commonly encountered in permutations, combinations, number theory and series expansions of trigonometric and other functions (Taylor series).

Number of trailing zeros in 22! = 4
To understand factorials, you might find it useful to read the Factorial tutorial over here.
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