Least Common Multiple Calculator

Here's a handy little calculator you can use to find the
Least Common Multiple (LCM) of two or three numbers.

numbers/images/lcm-tool.js

The Least Common Multiple is the smallest number that's a multiple of two or more numbers.

For example, to find the LCM of 3 and 4:

  • Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, ...
  • Multiples of 4: 4, 8, 12, 16, 20, 24, 28, ...

The common multiples are 12, 24, and so on. The least (smallest) common multiple is 12.

Maybe you wanted the Greatest Common Factor (GCF) Calculator ... ?