Using python

Problem 7 (10 points). Given a number n calculate n! using a while loop. n!, called n factorial, is

defined as the product of numbers 1 through n.

For example 4! = 1 X 2 X 3 X 4 = 24

For example 2! = 1 X 2 = 2

For example 5! = 1 X 2 X 3 X 4 X 5 = 120

Sample program output:

Please enter n: 3

3 factorial is 6