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The LCM of 21 and 252 is 252.
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Find least common multiple (LCM) of: 42 & 504 63 & 756 7 & 84 105 & 1260 147 & 1764 3 & 36 42 & 252 21 & 504 63 & 252 21 & 756 105 & 252 21 & 1260 147 & 252 21 & 1764
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