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How do you find the least common multiple of 4 7 12 21?

Anonymous

∙ 7y ago

Updated: 8/20/2019

Factor them.

2 x 2

1 x 7

2 x 2 x 3

3 x 7

The answer is 1 x 2 x 2 x 3 x 7 or 84

Wiki User

∙ 7y ago

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