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The LCM of 21 and 972 is 6804.
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Find least common multiple (LCM) of: 42 & 1944 63 & 2916 7 & 324 105 & 4860 147 & 6804 42 & 972 21 & 1944 63 & 972 21 & 2916 105 & 972 21 & 4860 147 & 972 21 & 6804
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