LCM( 35, 70, 105 ) = 210
Write down multiples of each number until you find the first common multiple:
The multipliers of 35 are: 35, 70, 105, 140, 175, 210, 245, . . .
The multipliers of 70 are: 70, 140, 210, 280, . . .
The multipliers of 105 are: 105, 210, 315, . . .
We can see that:
LCM( 35, 70, 105 ) = 210
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.