@stdlib/math-base-special-lcm

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

lcm

Compute the least common multiple (lcm).

The least common multiple (lcm) of two non-zero integers a and b is the smallest positive integer that is divisible by both a and b. The lcm is also known as the lowest common multiple or smallest common multiple and finds common use in calculating the lowest common denominator (lcd).

Installation

npm install @stdlib/math-base-special-lcm

Usage

var lcm = require( '@stdlib/math-base-special-lcm' );

lcm( a, b )

Computes the least common multiple (lcm).

var v = lcm( 48, 18 );
// returns 144

If either a or b is 0, the function returns 0.

var v = lcm( 0, 0 );
// returns 0

v = lcm( 2, 0 );
// returns 0

v = lcm( 0, 3 );
// returns 0

Both a and b must have integer values; otherwise, the function returns NaN.

var v = lcm( 3.14, 18 );
// returns NaN

v = lcm( 48, 3.14 );
// returns NaN

v = lcm( NaN, 18 );
// returns NaN

v = lcm( 48, NaN );
// returns NaN

Examples

var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var lcm = require( '@stdlib/math-base-special-lcm' );

var a;
var b;
var v;
var i;

for ( i = 0; i < 100; i++ ) {
    a = round( randu()*50 );
    b = round( randu()*50 );
    v = lcm( a, b );
    console.log( 'lcm(%d,%d) = %d', a, b, v );
}

---

See Also

• @stdlib/math-base/special/gcd: compute the greatest common divisor (gcd).

---

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

---

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.