Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails35753791Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 271P-1B1 = 445000B2 = 13127500LLStatusDateUserResidueShiftSoftwareVerified2007-06-15Peter Rombouts72C960E7797D3CB66904878Windows,Prime95,v24 final,(aka Wc1)Verified2016-04-11Dubslow72C960E7797D3CB610283726Linux 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2019-11-03-anonymous-NFno factor TF: 71-722019-11-03-anonymous-NFno factor TF: 72-732016-04-11DubslowC-LL72C960E7797D3CB62014-07-24LaurVNFno factor TF: 70-712014-07-24LaurVNFno factor TF: 69-702013-03-16Torben K.NFno factor TF: 68-692012-04-01Carsten KossendeyNFno factor TF: 67-682007-06-15-anonymous-C-LL72C960E7797D3CB62007-04-23-anonymous-NF-PM1B1=445000, B2=13127500, E=62006-02-15-anonymous-NFno factor TF: 1-672004-07-13AxelFoxNFno factor TF: 1-60