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The LCM of 20 and 70 is 140.
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Find least common multiple (LCM) of: 40 & 140 10 & 35 60 & 210 100 & 350 4 & 14 140 & 490 40 & 70 20 & 140 60 & 70 20 & 210 100 & 70 20 & 350 140 & 70 20 & 490
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