Write a Program in Python to find the Factorial of a number
Factorial : The factorial of a number is the product of all the integers below it till 1. for example factorial of 5 is 5 x 4 x 3 x 2 x 1 which is 120.
It is a mathematical operation. If we want to calculate the factorial of 6 so it can be represented like 6! which means the product of all integers that fall between 1 & 6 (including 1 and 6 also)
6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
4! = 4 x 3 x 2 x 1 = 24
Python Program to find the Factorial of number using For loop
In above code, n1 is a variable used to store the integer whose factorial is to be calculated.
Factorial can be calculated only for positive integers. so to check this condition, we used first if(if n1 < 0) statement
Factorial of 0 is one. so to check this condition, we used elif (elif n1 == 0)
In else part we used for loop and range function to multiply all those numbers from n1 to 1.
OUTPUT:
Python Program to find the Factorial of number using While loop
OUTPUT:
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