Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails26141851Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 270P-1B1 = 1000000B2 = 10000000LLStatusDateUserResidueShiftSoftwareBad2005-07-17Ryouchi Hashimoto766D3CB41016DC7924828705Windows,Prime95,v23,(aka WZ1)Bad2011-10-28NathanFaber6B71CC06A070ABF112573139Windows,Prime95,v26.5,build 5Verified2012-01-30monst4CFBD63B44087D4311933369Windows 64-bit,Prime95,v26.6,build 3Verified2012-07-02Dubslow4CFBD63B44087D430CUDALucas v2.04 BetaHistoryDateUserTypeResult2021-01-09-anonymous-NFno factor TF: 72-732021-01-09-anonymous-NFno factor TF: 70-712021-01-09-anonymous-NFno factor TF: 71-722012-07-16BloodIceNF-PM1B1=1000000, B2=10000000, E=122012-07-02DubslowC-LL4CFBD63B44087D432012-02-02hustensaftNFno factor TF: 69-702012-01-30monstC-LL4CFBD63B44087D432012-01-02Luigi MorelliNFno factor TF: 68-692011-11-01David CampeauNFno factor TF: 67-682011-10-28NathanFaberC-LL6B71CC06A070ABF12005-07-17-anonymous-C-LL766D3CB41016DC792005-07-01-anonymous-NF-PM1B1=3850002004-10-03MarzbugNFno factor TF: 1-67