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Q: Is 42 a common multiples of 7 and 8?

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All multiples of 8 are also multiples of 4.

72

Any multiple of 88

The LCM is 8.The least common multiple of the number 8 and 2 would be 2.

The factors of 28 are: 1, 2, 4, 7, 14, 28.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56.The common factors are: 1, 2, 7, 14The greatest common factor is 14

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lcm(2, 7) = 14 → first 3 common multiples are: 14, 28, 42; lcm(2, 8) = 8 → first 3 common multiples are: 8, 16, 24; lcm(7, 8) = 56 → first 3 common multiples are: 56, 112, 168; lcm(2, 7, 8) = 56 → first 3 common multiples are: 56, 112, 168.

The common multiples of 6, 7, and 8 are the multiples of its least common multiple, which is 168.The LCM of 6, 7, and 8 is 168.168, 336, 504 and so on.

The common multiples are the infinite set of the multiples of the LCM of 7 and 8. Therefore, the common multiples of 7 and 8 are 56, 112, 168, 224, 280, and so on.

7, 14, 21 and so on. 8, 16, 24 and so on. 14, 28, 42 and so on. Common multiples include 56, 112, 168 and so on.

The common multiples of an set of numbers are the multiples of their lowest common multiple. lcm(7, 8, 9) = 504 → the first 3 common multiples of 7, 8, 9 are 504, 1008, 1512.

56

56

The common multiples of 7, 8, and 8 are the infinite set that includes any multiple of 56. The common multiples are thus 56, 112, 168, 224, 280, and so on.

504 is the least common multiple of 7, 8 and 9. All numbers that are multiples of 504 are multiples of 7, 8 and 9 as well

56

56

First common multiples are also know as the least common multiples (LCM) the answer is................ 168

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