Least common multiple

LCM Calculator

Find the exact least common multiple of two or more integers. See the GCD reduction chain, prime-power recipe when practical, divisibility proof, and the next common multiples — all without rounding.

Enter integers separated by commas, spaces or new lines

Supports negatives and zero. Up to 100 integers, each up to 500 digits.

Exact result

Least common multiple

LCM

Normalized input

Digits in LCM

Next common multiples

Two-number identity

GCD-reduction chain

OneFreePlace · Free, local, accessible calculator · Tool #477