The factorial calculator in Python is a common programming exercise for beginners and professionals alike. It involves calculating the factorial of a number, which is the product of all positive integers up to that number. This Python program uses a recursive function to calculate the factorial of a given number. The factorial is computed by multiplying the number with the factorial of its preceding number. This article covers several ways to find the factorial of a number in Python with examples, ranging from traditional iterative techniques to more concise recursive implementations and the utilization of built-in library functions. A factorial program in Python using recursion calculates the factorial of a number by breaking the problem into smaller subproblems. To determine the factorial , it makes use of a function that calls itself.