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The LCM of 640 and 9 is 5760.
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Find least common multiple (LCM) of: 1280 & 18 1920 & 27 3200 & 45 4480 & 63 1280 & 9 640 & 18 1920 & 9 640 & 27 3200 & 9 640 & 45 4480 & 9 640 & 63
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