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Best Answer

Factor them.

2 x 3 x 5 x 7 = 210

2 x 3 x 5 x 11 = 330

Combine the factors, eliminating duplicates.

2 x 3 x 5 x 7 x 11 = 2310, the LCM

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12y ago

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Wiki User

9y ago

Incorrectly. The LCM of 120 and 210 is 840.

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Wiki User

12y ago

LCM for 90 and 210 is 630.

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Wiki User

9y ago

630

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Q: How do you get 1260 LCM from 120 and 210?
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