Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails27812929Composite: proven not-prime with Lucas-Lehmer testNo factors below 275TF target 270P-1B1 = 989000B2 = 52498000LLStatusDateUserResidueShiftSoftwareVerified2006-01-15Alex and Nick MyrmanAA0B1A9F4F191CC914007976Windows,Prime95,v24 final,(aka Wc1)Verified2012-08-06DubslowAA0B1A9F4F191CC90CUDALucas v2.04 BetaHistoryDateUserTypeResult2021-11-19RichD0NF-PM1B1=989000, B2=524980002021-10-07TheJudgerNFno factor TF: 74-752021-09-12TheJudgerNFno factor TF: 73-742021-08-23TheJudgerNFno factor TF: 72-732021-04-26Sid & AndyNFno factor TF: 71-722021-03-28mikrNFno factor TF: 70-712017-04-02ramgeisNFno factor TF: 69-702012-08-06DubslowC-LLAA0B1A9F4F191CC92011-11-25bcp19NFno factor TF: 68-692011-09-05Carsten KossendeyNFno factor TF: 67-682006-03-01-anonymous-C-LLAA0B1A9F4F191CC92006-01-15-anonymous-C-LLAA0B1A9F4F191CC92005-03-20-anonymous-NF-PM1B1=4350002005-02-12-anonymous-NFno factor TF: 1-672004-09-02-anonymous-NFno factor TF: 1-622001-08-24Net_ForceNFno factor TF: 1-56