Search for a tool
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.

Results

Factorial -

Tag(s) : Arithmetics

Share dCode and you

dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!

Team dCode likes feedback and relevant comments; to get an answer give an email (not published). It is thanks to you that dCode has the best Factorial tool. Thank you.

# 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.

### 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

dCode retains ownership of the source code of the script Factorial online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be released for free. To download the online Factorial script for offline use on PC, iPhone or Android, ask for price quote on contact page !