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The LCM of 21 and 70 is 210.
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Find least common multiple (LCM) of: 42 & 140 63 & 210 105 & 350 147 & 490 3 & 10 42 & 70 21 & 140 63 & 70 21 & 210 105 & 70 21 & 350 147 & 70 21 & 490
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