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The LCM of 3 and 40 is 120.
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Find least common multiple (LCM) of: 6 & 80 9 & 120 15 & 200 21 & 280 6 & 40 3 & 80 9 & 40 3 & 120 15 & 40 3 & 200 21 & 40 3 & 280
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