Friday, March 13, 2015

A perfect square problem

Find all positive integers $n$ (with proof), for which $$n^4 + n^3 + n^2 + n + 1$$ is a perfect square.

[Solution]
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2 comments:

  1. AnonymousMarch 13, 2015 at 11:20 AM

    3

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    1. Peiyush JainMarch 13, 2015 at 2:50 PM

      That is correct!

      Do you have a proof? (I have edited the blog post to ask for a proof :-))

      Delete

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