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2 x 11 = 22

2 x 2 x 7 = 28

Select the highest amount of each factor.

2 x 2 x 7 x 11 = 308, the LCM

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9y ago
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8y ago

Find a number that they all go into. The first one you'll come to is 84.

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8y ago

You cannot. The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The least multiple of a number is itself.

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Q: How do you LCM 7 21 and 28?
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