Factorial Program using recursion in Python

   

         Factorial Program using recursion in Python

Factorial of n is the product of all positive descending integers. Factorial of n is denoted by n!. For example:

1. 5! = 5*4*3*2*1 = 120  
2. 3! = 3*2*1 = 6  

Program:

def factorial(n): 

  if (n == 0): 

    return 1;  

  else : 

    return(n * factorial(n-1))

  

   

if __name__ == "__main__":

    fact=0

    number=int(input("Enter a number: "))

    fact = factorial(number);  

    print("Factorial of" ,number," is", fact)