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Multiples of 20: 1, 2, 4, 5, 10, 20

M of 30: 1, 2, 3, 5, 6, 10, 15, 30

M of 40: 1, 2 ,4, 5, 8, 10, 20, 40

Common factors: 1, 2, 5, and 10

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13y ago

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