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21331Re: Second mega-trit prime

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  • jpyah2001
    Feb 14, 2010
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      It is prime, indeed!!

      ./llr -d -q"2*3^1086112+1"
      Base prime factor(s) taken : 3
      Starting N-1 prime test of 2*3^1086112+1
      2*3^1086112+1 may be prime, trying to compute gcd's
      3^((N-1)/3)-1 is coprime to N!
      2*3^1086112+1 is prime! Time : 7392.541 sec.

      Bravo!
      Jean

      --- In primenumbers@yahoogroups.com, "djbroadhurst" <d.broadhurst@...> wrote:
      >
      >
      >
      > --- In primenumbers@yahoogroups.com,
      > "jpyah2001" <jpenne@> wrote:
      >
      > > 2*3^1074726+1 is prime! Time : 8911.548 sec.
      >
      > Thank you, kindly, dear Sir. I am much relieved.
      >
      > > I shall now verify the second (mainly to test the young
      > > new LLR, I am confident it is prime!)
      >
      > It was the second that made me worry:
      > "too much of a good thing", I said to myself,
      > with my usual skepticism.
      >
      > So another test by "young new LLR" would be
      > much appreciated, even though it does now
      > look as if it indeed may succeed.
      >
      > As ever, I rely on the existence of a variety
      > of software, with dedicated and generous authors
      > and maintainers, to keep us free of needless error.
      >
      > David
      >
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