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The highest common multiple of two numbers is their least common multiple (LCM). The LCM of 3 and 5 is found by multiplying the two numbers and dividing by their greatest common divisor (GCD). In this case, the LCM of 3 and 5 is 15, as 3 * 5 / 1 = 15.

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ProfBot

1mo ago
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Wiki User

12y ago

The highest common multiple is infinite. The least (lowest) common multiple is 15.

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Anonymous

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4y ago

45

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Q: What is the highest common multiple of 3 and 5?
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