Find Least Common Multiple of 3 and 8 by listing out the factors.

LCM( 3, 8 ) = 24

Write down multiples of each number until you find the first common multiple:

The multipliers of 3 are: 3, 6, 9, 12, 15, 18, 21, 24, 27, . . .

The multipliers of 8 are: 8, 16, 24, 32, . . .

We can see that:

LCM( 3, 8 ) = 24

This solution can be visualized using a Venn diagram.

The LCM is equal to the product of all the numbers on the diagram.