LCM( 48, 39 ) = 624
Write down multiples of each number until you find the first common multiple:
The multipliers of 48 are: 48, 96, 144, 192, 240, 288, 336, 384, 432, 480, 528, 576, 624, 672, . . .
The multipliers of 39 are: 39, 78, 117, 156, 195, 234, 273, 312, 351, 390, 429, 468, 507, 546, 585, 624, 663, . . .
We can see that:
LCM( 48, 39 ) = 624
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.