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Reduce all numbers to prime factors and combine (most of each prime)

For example, LCM of 30 and 24

30 is 2 x 3 x 5

24 is 2 x 2 x 2 x 3

The most 2's we have is 3 (in 24)

The most 3's we have is 1

The most 5's we have is 1

So LCM is 2 x 2 x 2 x 3 x 5 = 120

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14y ago

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