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lcm
Compute the least common multiple (lcm).
The least common multiple (lcm) of two nonzero 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/mathbasespeciallcm
Usage
var lcm = require( '@stdlib/mathbasespeciallcm' );
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/randombaserandu' );
var round = require( '@stdlib/mathbasespecialround' );
var lcm = require( '@stdlib/mathbasespeciallcm' );
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/mathbase/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 © 20162023. The Stdlib Authors.