mathematics, the notation n! represents the factorial of the non-negative integer n. The factorial of n is the product of all the non-negative integers from 1 up through n. For example:

7! = 1 * 2 * 3 * 4 * 5 * 6 * 7 = 5,040

and

4! = 1 * 2 * 3 * 4 = 24

Design a program that asks the user to enter a non-negative integer number and then displays the factorial of that number.

I need this in Raptor programming.