Factorial Calculator

Free online factorial calculator.

Enter the non negative integer number (n) and press the  =  button:

                   
                   
 

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The factorial formula is:

n! = 1·2·3·4·...·n

For example:

3! = 1·2·3 = 6

4! = 1·2·3·4 = 24

5! = 1·2·3·4·5 = 120

 

See also

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