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<h1 id="function-gcd">Function gcd <a href="#function-gcd" title="Permalink">#</a></h1>

Calculate the greatest common divisor for two or more values or arrays.

For matrices, the function is evaluated element wise.


<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>

```js
math.gcd(a, b)
math.gcd(a, b, c, ...)
```

<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>

Parameter | Type | Description
--------- | ---- | -----------
`args` | ... number &#124; BigNumber &#124; Fraction &#124; Array &#124; Matrix | Two or more integer numbers

<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>

Type | Description
---- | -----------
number &#124; BigNumber &#124; Fraction &#124; Array &#124; Matrix | The greatest common divisor


<h3 id="throws">Throws <a href="#throws" title="Permalink">#</a></h3>

Type | Description
---- | -----------


<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>

```js
math.gcd(8, 12)              // returns 4
math.gcd(-4, 6)              // returns 2
math.gcd(25, 15, -10)        // returns 5

math.gcd([8, -4], [12, 6])   // returns [4, 2]
```


<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>

[lcm](lcm.html),
[xgcd](xgcd.html)