Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails37518583Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 271P-1B1 = 400000B2 = 12000000LLStatusDateUserResidueShiftSoftwareVerified2007-09-28C. Cooper / S. Boone05B954D8CF9B409624203054Windows,Prime95,v24 final,NT service,(aka Wc5)Verified2016-09-06Dubslow05B954D8CF9B409615856743Linux 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2022-05-20Sid & AndyNFno factor TF: 71-722022-05-20Sid & AndyNFno factor TF: 72-732016-09-06DubslowC-LL05B954D8CF9B40962016-03-08HBendtzNF-PM1B1=400000, B2=12000000, E=122014-03-02Jerry HallettNFno factor TF: 70-712013-11-23bayanneNFno factor TF: 69-702013-07-14Norman LeyNFno factor TF: 68-692012-04-29Carsten KossendeyNFno factor TF: 67-682007-09-28curtiscC-LL05B954D8CF9B40962007-07-24curtiscNF-PM1B1=6550002006-04-28Team Prime RibNFno factor TF: 1-67