The FACTORIAL function returns an integer that is the factorial of argument-1. The type of this function is integer.
General Format
Arguments
- Argument-1 must be an integer greater than or equal to zero.
Returned Values
- If the value of argument-1 is zero, the value 1 is returned.
- If the value of argument-1 is positive, its factorial is returned.
- Floating-point format is used for numeric non-integer results.