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Code for finding LCM or LCD

Note: LCD and LCM are same LCD: Least common divisor LCM: Least Common Multiple

Using LOOP

function lcm(a, b) {
let min = a > b ? a : b;
// while loop
while (true) {
if (min % a == 0 && min % b == 0) {
return min;
}
min++;
}
}
lcm(15, 20); // 60

Using GCD

function gcd(a, b) {
if (b === 0) return a;
return gcd(b, a % b);
}
function lcm(a, b) {
return (a * b) / gcd(a, b);
}
lcm(15, 20); // 60