Question

Write a program using a user defined function calcFact() to calculate and display the factorial of a number num passed as an argument.

Answer 1

#Function to calculate factorial 

#The requirements are listed below: 

  #1. The function should accept one integer argument from user. 

  #2. Calculate factorial. For example: 

  #3. Display factorial 

def calcFact(num): 

     fact = 1 

     for i in range(num,0,-1): 

            fact = fact * i 

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

num = int(input("Enter the number: ")) 

calcFact(num) 

Output: 

Enter the number: 5

Factorial of 5 is 120