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265 digit ap10

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  • Ken Davis
    (1600616052+n*52323192)*617#+1 (n=0-9) describes a 265 digit ap10 cheers Ken Primality testing (1600616052+0*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
    Message 1 of 3 , Jun 1, 2009
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      (1600616052+n*52323192)*617#+1 (n=0-9) describes a 265 digit ap10

      cheers
      Ken

      Primality testing (1600616052+0*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.812%
      (1600616052+0*52323192)*617#+1 is prime! (0.0186s+0.0004s)
      Primality testing (1600616052+1*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 35.040%
      (1600616052+1*52323192)*617#+1 is prime! (0.0166s+0.0004s)
      Primality testing (1600616052+2*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.471%
      (1600616052+2*52323192)*617#+1 is prime! (0.0193s+0.0005s)
      Primality testing (1600616052+3*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 35.267%
      (1600616052+3*52323192)*617#+1 is prime! (0.0231s+0.0009s)
      Primality testing (1600616052+4*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 35.267%
      (1600616052+4*52323192)*617#+1 is prime! (0.0194s+0.0010s)
      Primality testing (1600616052+5*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.432%
      (1600616052+5*52323192)*617#+1 is prime! (0.0183s+0.0009s)
      Primality testing (1600616052+6*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.886%
      (1600616052+6*52323192)*617#+1 is prime! (0.0224s+0.0010s)
      Primality testing (1600616052+7*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.659%
      (1600616052+7*52323192)*617#+1 is prime! (0.0191s+0.0011s)
      Primality testing (1600616052+8*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 35.000%
      (1600616052+8*52323192)*617#+1 is prime! (0.0204s+0.0009s)
      Primality testing (1600616052+9*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]
      Running N-1 test using base 2
      Calling Brillhart-Lehmer-Selfridge with factored part 34.545%
      (1600616052+9*52323192)*617#+1 is prime! (0.0184s+0.0009s)
    • Jens Kruse Andersen
      ... Congratulations on continuing your AP record sweep, now AP4 to AP10. http://users.cybercity.dk/~dsl522332/math/aprecords.htm is updated. -- Jens Kruse
      Message 2 of 3 , Jun 1, 2009
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        Ken Davis wrote:
        > (1600616052+n*52323192)*617#+1 (n=0-9) describes a 265 digit ap10

        Congratulations on continuing your AP record sweep, now AP4 to AP10.
        http://users.cybercity.dk/~dsl522332/math/aprecords.htm is updated.

        --
        Jens Kruse Andersen
      • Ken Davis
        Hi Jens, Thanks for the congrats I think I ll move on to something else for a while. My method is not well suited for searches above ap10 Poisson was kind to
        Message 3 of 3 , Jun 1, 2009
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          Hi Jens,

          Thanks for the congrats
          I think I'll move on to something else for a while.
          My method is not well suited for searches above ap10
          Poisson was kind to me this time

          Details of this one were
          Newpgen sieved 1e9 to 2e9
          pfgw yielded 18,894,798 prps
          C++ AP Search program (combined total of 2700 ghz hrs over 5 PCs)
          Resulted in
          71214 ap7s
          1133 ap8s
          14 ap9s
          0 ap10s
          Ran pfgw script files to extend AP7s, 8 and 9's (up and down) where appropriate
          Resulted in additional
          409 ap8s
          11 ap9s
          1 ap10

          cheers
          Ken
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