Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails52793753Composite: proven not-prime with Lucas-Lehmer testNo factors below 274TF target 273P-1B1 = 290000B2 = 5437500LLStatusDateUserResidueShiftSoftwareVerified2011-06-07-anonymous-8615752BAC9FE4CD24910341Windows 64-bit,Prime95,v26.5,build 5Verified2020-07-25Dubslow8615752BAC9FE4CD40757192Linux 64-bit,Prime95,v29.8,build 6HistoryDateUserTypeResult2020-07-25DubslowC-LL8615752BAC9FE4CD2019-07-06-anonymous-NFno factor TF: 73-742016-01-28AirSquirrelsNFno factor TF: 72-732015-12-18-anonymous-NFno factor TF: 71-722015-09-21Architects CubedNFno factor TF: 70-712014-10-22NesowaNFno factor TF: 69-702011-08-03ixfd64NF-PM1B1=290000, B2=54375002011-06-07-anonymous-C-LL8615752BAC9FE4CD2008-12-30Oleg V.CatNFno factor TF: 1-692008-12-19Oleg V.CatNFno factor TF: 1-692008-11-28DerekNFno factor TF: 1-642008-06-02-anonymous-NFno factor TF: 1-632004-03-261997rj7NFno factor TF: 1-602003-12-131997rj7NFno factor TF: 1-592002-05-25-anonymous-NFno factor TF: 1-582001-07-07-anonymous-NFno factor TF: 1-572000-05-10-anonymous-NFno factor TF: 1-562000-02-23-anonymous-NFno factor TF: 1-542000-01-04-anonymous-NFno factor TF: 1-531999-12-01-anonymous-NFno factor TF: 1-53