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18 = 2 x 3 x 3, 20 = 2 x 2 x 5, 30 = 2 x 3 x 5: LCM is therefore 2 x 2 x 3 x 3 x 5 ie 180

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180

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15y ago
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Q: What is the least common multiple of 18 20 30?
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