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The LCM of 21 and 8 is 168.
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Find least common multiple (LCM) of: 42 & 16 63 & 24 105 & 40 147 & 56 42 & 8 21 & 16 63 & 8 21 & 24 105 & 8 21 & 40 147 & 8 21 & 56
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