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The general formula for the least common multiple (LCM) of two positive integers a and b is their product divided by their greatest common divisor (GCD): LCM(a,b) = ( $a * b$ ) / GCD(a,b).

Conditions: a and b are positive integers.

YouTubeChinese Remainder Theorem, 2-minute Method

3:51 – 4:05Watch this moment ↗

Answers for “什么时候可以跳过 GCD 计算直接相乘？”

What is the general formula for computing the least common multiple of two positive integers using their greatest common divisor?+