Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails53454109Composite: proven not-prime with Lucas-Lehmer testNo factors below 274TF target 273P-1B1 = 620000B2 = 14880000LLStatusDateUserResidueShiftSoftwareVerified2012-07-16Markus KrämerFC55B249A072287A51734533Windows 64-bit,Prime95,v26.6,build 3Verified2020-09-16DubslowFC55B249A072287A18431459Linux 64-bit,Prime95,v29.8,build 6HistoryDateUserTypeResult2020-09-16DubslowC-LLFC55B249A072287A2019-07-29ChuckNFno factor TF: 73-742016-02-03AirSquirrelsNFno factor TF: 72-732012-07-16Markus KrämerC-LLFC55B249A072287A2012-02-07NumberwangNFno factor TF: 71-722012-02-07NumberwangNFno factor TF: 70-712011-05-31megavinkNFno factor TF: 69-702010-11-27NYC Pet AdoptionNFno factor TF: 68-692010-11-22GrunwalderGIMPNF-PM1B1=620000, B2=148800002009-05-09Johannes WeingartnerNFno factor TF: 67-682008-12-19BurgalveistNFno factor TF: 66-672008-12-18BurgalveistNFno factor TF: 65-662008-12-18CalebNFno factor TF: 64-652008-06-23-anonymous-NFno factor TF: 1-642007-09-131997rj7NFno factor TF: 1-632004-05-111997rj7NFno factor TF: 1-602002-07-06-anonymous-NFno factor TF: 1-582001-08-12-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