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19818RE: [PrimeNumbers] Re: Find non-integer A such that floor(A^n) is never prime?

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  • Chris Caldwell
    Jan 16, 2009
      Thanks Robert for the nice closed form example.

      > As for the larger question: I have no good idea for a
      > closed form. Did Mills address the question of the
      > existence, in principle, of such a number A?

      No, his note is very short, contains no numerics,
      and is very focused on his result. However, it
      would be trivial to modify his methods of proof
      for composites, and of course the exponent 3 can
      be reduced (for composites). CC
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