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The LCM of 36 and 21 is 252.
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Find least common multiple (LCM) of: 72 & 42 108 & 63 12 & 7 180 & 105 252 & 147 72 & 21 36 & 42 108 & 21 36 & 63 180 & 21 36 & 105 252 & 21 36 & 147
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