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To find the Least Common Multiple (LCM) of 7, 14, and 21, we first need to factorize each number. The prime factors of 7 are 7, of 14 are 2 x 7, and of 21 are 3 x 7. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers. Therefore, LCM(7, 14, 21) = 2 x 3 x 7 = 42.

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2mo ago

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More answers

The multiples of 7 are 7, 14, 21, 28, 35, 42, etc.The multiples of 14 are 14, 28, 42, etc.

The multiples of 21 are 21, 42, etc.

The least common multiple (LCM) of 7, 14, and 21 is 42

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Wiki User

7y ago
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The LCM is: 42

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Wiki User

14y ago
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Q: LCM 7 14 21
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