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LCM

Least common multiple of two or more numbers.

e.g. 12, 18, 24

LCM

72

Important: Separate numbers with commas or spaces.

How to calculate the LCM

Separate two or more positive integers with commas or spaces. The LCM (least common multiple) uses the GCD: LCM(a, b) = |a × b| / GCD(a, b). Useful for fractions and cycles that must line up.

Frequently asked questions

Can LCM take more than two numbers?
Yes. Enter 2, 3 or more integers separated by commas or spaces.
Are LCM and MMC the same?
Yes. MMC is the Portuguese name for least common multiple.
How does LCM relate to GCD?
For two numbers, LCM(a, b) = |a × b| / GCD(a, b).
Is the calculation local?
Yes. Nothing is sent to a server.

See also