Least Common Multiple (LCM) Calculator

Enter two or more integers separated by commas to find their Least Common Multiple (LCM).

How to Find the LCM

Method: Prime Factorization

  1. Find the prime factorization of each number.
  2. Take each prime factor at its highest power.
  3. Multiply them together.

Example: LCM(4, 6)

  • 4 = 22
  • 6 = 2 × 3
  • LCM = 22 × 3 = 12

LCM Formula

LCM(a, b) = |a × b| / GCF(a, b)

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