LCM( 10, 5, 2 ) = 10
Write down multiples of each number until you find the first common multiple:
The multipliers of 10 are: 10, 20, . . .
The multipliers of 5 are: 5, 10, 15, . . .
The multipliers of 2 are: 2, 4, 6, 8, 10, 12, . . .
We can see that:
LCM( 10, 5, 2 ) = 10
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.