Python Program

Object:- Write a Python Program to Find the Factorial of a Number

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

factorial = 1

# check if the number is negative, positive or zero
if num < 0:
   print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
   print("The factorial of 0 is 1")
else:
   for i in range(1,num + 1):
       factorial = factorial*i
   print("The factorial of",num,"is",factorial)

Output

Enter a number: 5
The factorial of 5 is 120

Explanation

The factorial of a number is the product of all the integers from 1 to that number.