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The LCM of 84 and 640 is 13440.
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Find least common multiple (LCM) of: 168 & 1280 42 & 320 252 & 1920 420 & 3200 588 & 4480 168 & 640 84 & 1280 252 & 640 84 & 1920 420 & 640 84 & 3200 588 & 640 84 & 4480
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