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Least common multiple of 15 and 21?

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Anonymous

∙ 16y ago
Updated: 10/17/2024

15 = 5 x 3. 21 = 7 x 3. The 3 is common to both, so use it once. 5 x 3 x 7 = 105. The LCM is 105.

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Wiki User

∙ 16y ago
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