SOLVED: Write the code in Python please Write a function that calculates the factorial of an integer n, where n >= 1. A factorial is calculated by taking the product of all positive integers less than or equal to a given positive integer: For example, the factorial of 4 (written as 4!) is calculated from the product of 4 3 2 1 = 24. More generally written: nl = n X (n - 1)X(n Tt 2)x. X1The function must take the positive integer as a parameter and returns the correct factorial product. You may a