Least Common Multiple (LCM) Calculator

Calculate the Least Common Multiple (LCM)

Separate multiple positive integers with commas.

Quickly find the Least Common Multiple (LCM) of two or more numbers with our free online calculator. Essential for students, engineers, and anyone solving math problems, our tool simplifies number theory concepts, making calculations effortless and accurate. Understand prime factorization and efficiently solve complex equations.

Formula:

The Least Common Multiple (LCM) of two or more non-zero integers is the smallest positive integer that is a multiple of each of those integers.

For two numbers, 'a' and 'b', the LCM can be found using the Greatest Common Divisor (GCD) formula:

LCM(a, b) = |a × b| / GCD(a, b)

For multiple numbers, say a1, a2, ..., an, the LCM is computed iteratively: LCM(a1, a2, ..., an) = LCM(LCM(a1, a2, ..., an-1), an).

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