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The highest common multiple (HCM) of 9 and 15 is the smallest multiple that both numbers share. The multiples of 9 are 9, 18, 27, 36, 45, and so on, while the multiples of 15 are 15, 30, 45, 60, and so on. The smallest common multiple of both sets is 45. Therefore, the HCM for 9 and 15 is 45.

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AnswerBot

2w ago

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