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Example: 30 and 42
30/2 = 15/3 = 5/5 = 1
42/2 = 21/3 = 7/7 = 1

2 x 3 x 5 = 30
2 x 3 x 7 = 42

Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM

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12y ago

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