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Factorial

Tool for computing factorials. Factorial n! is the product of all integers numbers (not zero) inferior or equal to n, it is symbolized by an exclamation point juxtaposed after the number.

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Factorial -

Tag(s) : Arithmetics

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# Factorial

## Gamma Calculator Γ(N)

Tool for computing factorials. Factorial n! is the product of all integers numbers (not zero) inferior or equal to n, it is symbolized by an exclamation point juxtaposed after the number.

## Answers to Questions

### How to calculate a factorial?

Factorial of a number $n$ is calculated with a multiplication: it is the product of the positive integers numbers (not null) less or equal to $n$.

The usual notation to indicate a factorial is the exclamation mark positioned after the number. The factorial of $n$ is noted $n!$.

$$n!=\prod_{k=1}^n k$$

Example: $$4! = 1 \times 2 \times 3 \times 4 = 24$$

## Source code

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## Questions / Comments

Thanks to your feedback and relevant comments, dCode has developped the best Factorial tool, so feel free to write! Thank you !

Source : https://www.dcode.fr/factorial
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