LCM Calculator

LCM Calculator

LCM Calculator

The Least Common Multiple (LCM) of two or more integers, when at least one of them is not zero, is the smallest number (not zero) that is a multiple of both.

Enter the numbers (comma seperated) to find the Least Common Multiple

Enter the Numbers

When do I use LCM in real life?

  • Do we have an event that will be repeating over and over?
  • Will we have to purchase or get multiple items in order to have enough?
  • Are we trying to figure out when something will happen again at the same time?

Hotdogs and Buns

Hotdogs come in packages of 10, while buns/rolls come in either 8 or 12. What's the smallest number of each you have to buy to have the same number of each?

Three planet alignment

Suppose there are three planets revolving around a star which take l, m and n units of time respectively to complete their orbits. Assume that l, m and n are integers. Assuming the planets started moving around the star after an initial linear alignment, all the planets attain a linear alignment again after units of time. At this time, the first, second and third planet will have completed orbits respectively around the star.

Least Common Multiple