# isCoprime
> Test if two numbers are [coprime][coprime-integers].
Two integers `a` and `b` are said to be **coprime** (or **relatively prime** or **mutually prime**) if the only positive integer that divides both of them is `1`.
## Usage
```javascript
var isCoprime = require( '@stdlib/math/base/assert/is-coprime' );
```
#### isCoprime( a, b )
Tests if two numbers are [coprime][coprime-integers].
```javascript
var bool = isCoprime( 14.0, 15.0 );
// returns true
bool = isCoprime( 14.0, 21.0 );
// returns false
```
## Examples
```javascript
var isCoprime = require( '@stdlib/math/base/assert/is-coprime' );
var bool = isCoprime( 5.0, 7.0 );
// returns true
bool = isCoprime( 5.0, 15.0 );
// returns false
bool = isCoprime( NaN, NaN );
// returns false
```
[coprime-integers]: https://en.wikipedia.org/wiki/Coprime_integers