Hey guys, in this blog we will see a Python Program to Find Factorial of Number Using Recursion.
# Python Program to Find Factorial of Number Using Recursion def factorial_recur(n): if n == 1: return n else: return n*factorial_recur(n-1) num = int(input('Enter a number -> ')) # check if 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", factorial_recur(num))
Enter a number -> 5 The factorial of 5 is 120
Enter a number -> 10 The factorial of 10 is 3628800
Enter a number -> 7 The factorial of 7 is 5040
- Here we have used the concept of recursion to calculate the factorial of a number entered by the user.
- For example, the factorial of 5 can be calculated as follow:
5! = 5X4!
4! = 4X3!
3! = 3X2!
2! = 2X1!
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