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The LCM of 4 and 1680 is 1680.
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Find least common multiple (LCM) of: 8 & 3360 2 & 840 12 & 5040 20 & 8400 8 & 1680 4 & 3360 12 & 1680 4 & 5040 20 & 1680 4 & 8400 28 & 1680
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