Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails53298473Composite: proven not-prime with Lucas-Lehmer testNo factors below 275TF target 273P-1B1 = 630000B2 = 18270000LLStatusDateUserResidueShiftSoftwareVerified2011-08-27Dubslow2124886E99B9014C15431012Linux 64-bit,Prime95,v26.6,build 3Verified2012-03-31Matt Schuelke2124886E99B9014C16303827Windows,Prime95,v25.7,build 3HistoryDateUserTypeResult2020-06-22-anonymous-NFno factor TF: 74-752019-01-26Sid & AndyNFno factor TF: 73-742015-11-21monstNFno factor TF: 72-732015-11-21monstNFno factor TF: 71-722015-05-15Architects CubedNFno factor TF: 70-712012-03-31Matt SchuelkeC-LL2124886E99B9014C2011-08-27DubslowC-LL2124886E99B9014C2011-05-14S01103NFno factor TF: 69-702010-10-21ITSNFno factor TF: 68-692010-10-18David HruskaNF-PM1B1=630000, B2=182700002009-04-26Sturle SundeNFno factor TF: 67-682008-12-20TihyNFno factor TF: 66-672008-12-19TihyNFno factor TF: 65-662008-12-17James HintzNFno factor TF: 64-652008-08-11-anonymous-NFno factor TF: 1-642007-08-141997rj7NFno factor TF: 1-632004-04-291997rj7NFno factor TF: 1-602002-06-29-anonymous-NFno factor TF: 1-582001-08-04-anonymous-NFno factor TF: 1-572000-05-24-anonymous-NFno factor TF: 1-562000-03-01-anonymous-NFno factor TF: 1-542000-01-12-anonymous-NFno factor TF: 1-531999-12-08-anonymous-NFno factor TF: 1-53