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The LCM of 8, 9, and 18 is 72.

You can find the least common multiple by listing the multiples of each number in the set, then checking for the lowest one found in each list.

The multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, and so on.

The multiples of 9 are 9, 18, 27, 36, 45, 54, 63, 72, and so on.

The multiples of 18 are 18, 36, 54, 72, and so on.

So the LCM of 8, 9, and 18 is 72.
72

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7y ago

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