# Calculator of the Factorial of a Number

Instructions: You can use this factorial calculator to compute the factorial of an integer number $$n$$.

Type the integer:

## More this factorial calculator

There are many Math contexts in which the use of factorials is relevant, especially in the field of Probability and Combinatorial, as the factorial of a number is related with the number of was $$n$$ objects can be organized.

The formula for $$n!$$ is:

$n! = n \cdot (n-1) \cdot (n-2) \cdots 2 \cdot 1$

Notice that when $$n$$ becomes large, the calculation of $$n!$$ is more computationally involved. Typically, for large values of $$n$$, you would use Stirling's Approximation, which provide a very accurate approximation.

You can also check our algebra calculators section to find more things to solve and calculate.

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