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57! Factorial of 57

Value of 57! i.e, Factorial of 57 =
40526919504877216755
68060190543232213498
03847962266021451844
81280000000000000



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 57! = 13
To understand factorials, you might find it useful to read the Factorial tutorial over here.
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