Python Program to Find the Factorial of a Number

In this example, we will write a simple program to take input number from the user and display the factorial of the number. To better understand this example, make sure you have knowledge of the following tutorials:-

• Python Operators
• Python for Loop Statements
• Python if…else Statement

Python Program to Find the Factorial of a Number

number = int(input("Enter a number: "))
if number < 0:
   print("Factorial doesn't exists for negative number !!!")
elif number == 0:
   print("The factorial of 0 is 1")
else:
    factorial = 1
    for i in range(1, number + 1):
        factorial *= i
    print("The factorial of", number, "is", factorial)

The output of the above program is:-