15 lines
334 B
Markdown
15 lines
334 B
Markdown
### lcm
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Returns the least common multiple of two numbers.
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Use the greatest common divisor (GCD) formula and `Math.abs()` to determine the least common multiple.
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The GCD formula uses recursion.
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```js
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const lcm = (x,y) => {
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const gcd = (x, y) => !y ? x : gcd(y, x % y);
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return Math.abs(x*y)/(gcd(x,y));
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};
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// lcm(12,7) -> 84
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```
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