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The LCM of 640 and 56 is 4480.
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Find least common multiple (LCM) of: 1280 & 112 320 & 28 1920 & 168 3200 & 280 4480 & 392 1280 & 56 640 & 112 1920 & 56 640 & 168 3200 & 56 640 & 280 4480 & 56 640 & 392
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