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The LCM of 3 and 28 is 84.
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Find least common multiple (LCM) of: 6 & 56 9 & 84 15 & 140 21 & 196 6 & 28 3 & 56 9 & 28 3 & 84 15 & 28 3 & 140 21 & 28 3 & 196
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