Factorial

Format: x !

Arguments: [int] x Input value between 0 and 170

Returns: [int] Factorial of x

Description: The factorial of a number x is the product of all integers between 1 and x. For example, 5! is equal to 1*2*3*4*5. The factorial of 0 is defined as 1.

Examples: 5! = 120

0! = 1

See Also: Logical Not