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The LCM of 2 and 20 is 20.
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Find least common multiple (LCM) of: 4 & 40 1 & 10 6 & 60 10 & 100 14 & 140 4 & 20 2 & 40 6 & 20 2 & 60 10 & 20 2 & 100 14 & 20 2 & 140
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