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The LCM of 21 and 66 is 462.
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Find least common multiple (LCM) of: 42 & 132 63 & 198 7 & 22 105 & 330 147 & 462 42 & 66 21 & 132 63 & 66 21 & 198 105 & 66 21 & 330 147 & 66 21 & 462
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