LCM( 16, 10 ) = 80
Write down multiples of each number until you find the first common multiple:
The multipliers of 16 are: 16, 32, 48, 64, 80, 96, . . .
The multipliers of 10 are: 10, 20, 30, 40, 50, 60, 70, 80, 90, . . .
We can see that:
LCM( 16, 10 ) = 80
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.