Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails42454033Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 272P-1B1 = 710000B2 = 710000LLStatusDateUserResidueShiftSoftwareVerified2008-05-11Stig M. Valstad272A23F809F3542813798853Windows,Prime95,v24 final,(aka Wc1)Verified2017-11-05Dubslow272A23F809F3542817992369Linux 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2018-08-12-anonymous-NFno factor TF: 72-732017-11-05DubslowC-LL272A23F809F354282015-08-27-anonymous-NFno factor TF: 71-722015-03-25Mark RoseNFno factor TF: 70-712015-02-09Andrew BNFno factor TF: 69-702014-01-02LaurVNFno factor TF: 68-692008-05-10stigmvC-LL272A23F809F354282008-03-22stigmvNF-PM1B1=7100002007-06-15precius1NFno factor TF: 1-68