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C125_138_10 Factored

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  • Torbjörn Alm
    Number: c125_138_10 N=80425624578284930422080308255482947720099698170846982141575063912745490806890926859485445657375603654025590955294560495071257 ( 125
    Message 1 of 1 , Feb 1, 2005
      Number: c125_138_10
      N=80425624578284930422080308255482947720099698170846982141575063912745490806890926859485445657375603654025590955294560495071257
      ( 125 digits)
      Divisors found:
      r1=8381490363079631660554919127263042207058512421197141 (pp52)
      r2=9595623343141797155485959532265013856323521234920822015931813360170135477
      (pp73)
      Version: GGNFS-0.72.10
      Total time: 7.55 hours.
      Scaled time: 3.00 units (timescale=0.398).
      Factorization parameters were as follows:
      name: c125_138_10
      n:
      80425624578284930422080308255482947720099698170846982141575063912745490806890926859485445657375603654025590955294560495071257
      deg: 5
      c5: 1000
      c0: 1
      Y1: 4761
      Y0: -250000000000000000000000000
      type: snfs
      rlim: 800000
      alim: 1000000
      lbpr: 25
      lbpa: 25
      mfbr: 46
      mfba: 46
      rlambda: 2.3
      alambda: 2.3
      skew: 5
      q0: 400000
      qintsize: 25000

      Factor base limits: 800000/1000000
      Large primes per side: 3
      Large prime bits: 25/25
      Sieved special-q in [400000, 1125001)
      Relations: rels:1924343, finalFF:172422
      Initial matrix: 142603 x 172422 with sparse part having weight 16211776.
      Pruned matrix : 137096 x 137873 with weight 10557426.
      Total sieving time: 6.92 hours.
      Total relation processing time: 0.11 hours.
      Matrix solve time: 0.47 hours.
      Time per square root: 0.04 hours.
      Prototype def-par.txt line would be:
      snfs,124,5,maxs1,maxskew,goodScore,efrac,j0,j1,eStepSize,maxTime,800000,1000000,25,25,46,46,2.3,2.3,10000
      total time: 7.55 hours.
      --------- CPU info (if available) ----------
      Athlon XP Barton 2500+

      Thanks to Greg and 'trilliwig' for all help.

      I cill continue to factor the low-Y composites.

      Torbjörn Alm
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