Python Programming - Lab- Core Lab 5 - Bsc CS DA -Bharathiar University - Program 6 - Write recursive functions for the factorial of positive integer.

 

 B.Sc Computer Science with Data Analytics  

Python Programming - Lab

Core Lab 5  

Bharathiar University 

Program 6 - Write recursive functions for the factorial of positive integer.

SOURCE CODE:

def factorial(n):
    if n == 0 or n == 1:
        return 1
    else:
        return n * factorial(n - 1)

# Read an integer
num = int(input("Enter a positive integer: "))

# Check if the input is a positive integer
if num < 0:
    print("Factorial is not defined for negative numbers.")
else:
    result = factorial(num)
    print("Factorial of", num, "is:", result)

OUTPUT:

Enter a positive integer: 5
Factorial of 5 is: 120