Please follow instructions below and write a Python program for this problem.

The factorial of a positive integer n (written n!) is the product 1 x 2 x 3 x x n. Write a program that asks the user to input a positive integer and then calculates and displays the factorial of the number. The program should include two functions: getN to which the input is first sent, and which guarantees that the input is a positive integer. (Hint: To check if it is an integer, you can use a statement like if int(num)- num. Then also check if it is positive.) The function fact should calculate the factorial value. The program (main) should then display the factorial value