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The LCM of 21 and 99 is 693.
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Find least common multiple (LCM) of: 42 & 198 63 & 297 7 & 33 105 & 495 147 & 693 42 & 99 21 & 198 63 & 99 21 & 297 105 & 99 21 & 495 147 & 99 21 & 693
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