6 – Best python program to find factorial using recursion

"""
Author : ITVoyagers (https://itvoyagers.in)

Date :22nd December 2020

Description : Python program to find the factorial of a number using recursion.

"""
def recur_facto(n):
"""Function to return the factorial
of a number using recursion"""
    if n == 1:
        return n
    else:
        return n*recur_facto(n-1)
num = int(input("Enter a number: "))

# check is the number is negative
if num < 0:
    print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
    print("The factorial of 0 is 1")
else:
    print("The factorial of",num,"is",recur_facto(num))