Write in Python Language.

Calculating the Factorial of a Number: In mathematics, the notation n ! represents the factorial of the nonnegative integer n. The factorial of n is the product of all the nonnegative integers from 1 to n. For example, 7!=1234567=5,040 and 4!=1234=24 Write a program that lets the user enter a nonnegative integer and then uses a loop to calculate the factorial of that number. Display the factorial