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Q: What are the first three common multiples of 10 15 and 20?

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10, 20, 30 The common multiples of 5 and 10 are multiples of their lowest common multiple. The lcm of 5 and 10, is 10. Thus the first three common multiples are 10, 20, 30.

the first 3 common multiples of 8 and 10 is 40, 80, and 120.

lcm(45, 10) = 90 → the first three common multiples are the first three multiple of their lcm → 90, 180, 270.

60,120,180

All the common multiples of a set of numbers are the multiples of their lowest common multiple: lcm(5, 8, 10) = 40 → first three common multiples are 40, 80, 120

10, 20, 30

10, 20, 30.

20 is the smallest common multiple of 4, 5, and 10, and thus the first. Thus, the first three common multiples of 4, 5, and 10 are 20, 40 and 60.

10, 20, 30

70, 140, 210

30, 60, 90

10, 20, 30

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