Find Least Common Multiple of 2 and 9 by listing out the factors.
Answer
LCM( 2, 9 ) = 18
Explanation
Write down multiples of each number until you find the first common multiple:
The multipliers of 2 are: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, . . .
The multipliers of 9 are: 9, 18, 27, . . .
We can see that:
LCM( 2, 9 ) = 18
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.
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