Question

What is the least common multiple of 3, 2, and 15?

Answer 1

The LCM for `3, 2`, and `15` is `color(red)30`.

Explanation:

In order to determine the least common multiple (LCM), list the multiples of each number. The lowest number that they all have in common is the LCM.

`3:` `3,6,9,12,15,18,21,24,27, color(red)(30),33,39...`

`2:` `2,4,6,8,10,12,14,16,18,20,22,24,26,28,color(red)(30),32...`

`15:` `15,color(red)30,45,60...`

The LCM for `3, 2`, and `15` is `color(red)30`.