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AP9 record

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  • Norman Luhn
    Hello primefans ! (105628556+n*7914782)*500#+1 :n=0..8 is a new AP9 record. best wishes -- Norman ___________________________________________________________
    Message 1 of 4 , Feb 10, 2006
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      Hello primefans !

      (105628556+n*7914782)*500#+1 :n=0..8 is a new AP9
      record.

      best wishes
      --
      Norman






      ___________________________________________________________
      Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de
    • mikeoakes2@aol.com
      ... Norman It s odd: you are producing records for the very same APn s that I have been attacking for quite a while now on my m/c. Probably, we independently
      Message 2 of 4 , Feb 10, 2006
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        In an email dated Fri, 10 2 2006 5:19:38 pm GMT, Norman Luhn <nluhn@...> writes:

        >(105628556+n*7914782)*500#+1 :n=0..8 is a new AP9
        >record.
        >

        Norman

        It's odd: you are producing records for the very same APn's that I have been attacking for quite a while now on my m/c.

        Probably, we independently identified (from Jens's marvellously lucid page) AP13 and AP9 as relatively "soft" targets.

        So, if Poisson plays ball, your new AP9 record will be broken within 1 month (unless you up the stakes as a result of this post...:-)

        Good luck in your searches!

        -Mike Oakes
      • mikeoakes2@aol.com
        ... Poisson has been very kind: success at 301 digits after only a few more hours:- (20475784+n*18458425)*701#+1 is prime for n=0..8 All confirmed prime with
        Message 3 of 4 , Feb 12, 2006
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          In an email dated Fri, 10 2 2006 5:19:38 pm GMT, Norman Luhn <nluhn@...> wrote:
          >
          >(105628556+n*7914782)*500#+1 :n=0..8 is a new AP9
          >record.
          >

          In an email dated Fri, 10 2 2006 9:24:36 pm GMT, mikeoakes2@... wrote:
          >
          >So, if Poisson plays ball, your new AP9 record will be broken within 1 month
          >

          Poisson has been very kind: success at 301 digits after only a few more hours:-

          (20475784+n*18458425)*701#+1 is prime for n=0..8
          All confirmed prime with PFGW -t

          Input/output statistics:-
          Numbers tested: 200,000,000
          PRP's found: 3,397,847
          AP8's found: 19
          AP9's found: 1

          Run-time statistics:-
          Apsieve: 0.5 GHz-days
          PFGW: 9 GHz-days
          Pascal program to find AP's: 1 GHz-day

          These are about 1/3 of what I had expected would be required.

          -Mike Oakes
        • Jens Kruse Andersen
          ... Congratulations. You guys keep me busy. http://hjem.get2net.dk/jka/math/aprecords.htm is updated, only 2 days after the last AP9 update. The new AP9 is
          Message 4 of 4 , Feb 12, 2006
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            Mike Oakes wrote:

            > Poisson has been very kind: success at 301 digits after
            > only a few more hours:-
            >
            > (20475784+n*18458425)*701#+1 is prime for n=0..8

            Congratulations. You guys keep me busy.
            http://hjem.get2net.dk/jka/math/aprecords.htm is updated,
            only 2 days after the last AP9 update.
            The new AP9 is harder to beat but there are still very easy records.

            --
            Jens Kruse Andersen
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