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The LCM of 32 and 21 is 672.
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Find least common multiple (LCM) of: 64 & 42 96 & 63 160 & 105 224 & 147 64 & 21 32 & 42 96 & 21 32 & 63 160 & 21 32 & 105 224 & 21 32 & 147
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