# Factorial Calculator

## What is Factorial Calculator?

'Cuemath's Factorial Calculator' is an online tool that helps to calculate the factorial of a given number. Cuemath's online Factorial Calculator helps you to calculate the factorial of a given number within a few seconds.

NOTE: Please enter the values upto two digits only.

## How to Use Factorial Calculator?

Please follow the below steps to find the factorial of a given number:

• Step1: Enter the number in the given input box.
• Step 2: Click on the "Calculate" button to find the factorial of a given number.
• Step 3: Click on the "Reset" button to clear the fields and find the factorial of a given number for different values.

## How to Find Factorial?

A factorial of a number is defined as a function which multiplies the number by every natural number below it. Symbolically the factorial can be represented as "!"

So, n factorial is the product of first n natural numbers, represented as n!

Factorial n! = n (n-1) (n-2) …………………….(3)(2)(1) or n! = n (n-1)!

Solved Example:

Find the 5!

Solution:

Factorial n! = n (n-1) (n-2) …………………….(3)(2)(1)

= 5 (5 - 1) (5 - 2) (5 - 3) (5 - 4) (5 - 5)!

= 5 × 4 × 3 × 2 × 1 × 0!      [0! = 1]

= 120

Similarly, you can try the calculator to find the factorial of any number

a) 10!

b) 7!

c) 13!

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