Author: RoadtoIVY Posted: Sun Nov 22, 2009 8:43 pm (GMT -8) Answer is 12: here is how: factors of 72 are — 6×6x2 so lowest value on n could be: 6×2 = 12 n^2 = 144 which is divisible by 72 so the largest which can divide n is 12. Hope it helps.

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Problem Solving :: RE: Another OG question that is atleast a 600-700 level question