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The LCM of 40 and 84 is 840.
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Find least common multiple (LCM) of: 80 & 168 20 & 42 120 & 252 200 & 420 280 & 588 80 & 84 40 & 168 120 & 84 40 & 252 200 & 84 40 & 420 280 & 84 40 & 588
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