Calculates the factorial of a number, returning 0 if that number is less than 0. A factorial is the product of an integer and all the integers below it. For instance, the factorial of 5 is 5 x 4 x 3 x 2 x 1 which is 120.
Input Fields
- number (Number): the initial value
Output Fields
- output (Number): the value produced from the factorial operation
Examples:
Factorial of 3 is 9 (3 x 2 x 1)
Factorial of 6 is 720 (6 x 5 x 4 x 3 x 2 x 1)