Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails38359549Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 272P-1B1 = 455000B2 = 11375000LLStatusDateUserResidueShiftSoftwareVerified2010-05-13PVasilev1B80638EE942EE8923792873Linux 32-bit,Prime95,v25.9,build 4Verified2016-12-19Dubslow1B80638EE942EE8934240679Linux 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2019-05-27Sid & AndyNFno factor TF: 72-732019-02-14monstNFno factor TF: 71-722016-12-19DubslowC-LL1B80638EE942EE892014-12-24Mark RoseNFno factor TF: 70-712014-12-24Mark RoseNFno factor TF: 69-702013-08-16krackerNFno factor TF: 68-692010-05-13PVasilevC-LL1B80638EE942EE892010-04-13PVasilevNF-PM1B1=455000, B2=113750002006-07-10Team Prime RibNFno factor TF: 1-682003-09-14-anonymous-NFno factor TF: 1-592003-09-09-anonymous-NFno factor TF: 1-60