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No n-th Powers Here! (Posted on 2005-09-05) Difficulty: 3 of 5
Show that the product of three consecutive positive integers cannot be the n-th power of an integer, for any integer n>1.

See The Solution Submitted by McWorter    
Rating: 3.4000 (5 votes)

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re(2): Solution? | Comment 3 of 7 |
(In reply to re: Solution? by Old Original Oskar!)

Since x doesn't share any common factors with x-1 and x+1, it must itself be an entirely n-th power...(am I correct in stating this?)
  Posted by Tan Kiat Chuan on 2005-09-05 17:55:50

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