LCM( 8, 10, 12 ) = 120
Write down multiples of each number until you find the first common multiple:
The multipliers of 8 are: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, . . .
The multipliers of 10 are: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, . . .
The multipliers of 12 are: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, . . .
We can see that:
LCM( 8, 10, 12 ) = 120
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.