Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails37979873Composite: proven not-prime with Lucas-Lehmer testNo factors below 273TF target 271P-1B1 = 725000B2 = 16312500LLStatusDateUserResidueShiftSoftwareVerified2008-01-15C. Cooper / S. BooneE36E640775E9663D31324876Windows,Prime95,v24 final,NT service,(aka Wc5)Verified2014-08-26DubslowE36E640775E9663D37553159Linux 64-bit,Prime95,v28.5,build 2HistoryDateUserTypeResult2022-07-05RichD0NFno factor TF: 72-732018-05-30Architects CubedNF-PM1B1=725000, B2=16312500, E=122018-05-24Architects CubedNFno factor TF: 71-722014-08-26DubslowC-LLE36E640775E9663D2014-04-03Jerry HallettNFno factor TF: 70-712014-04-03Jerry HallettNFno factor TF: 69-702008-01-15curtiscC-LLE36E640775E9663D2007-03-20AmperioNF-PM1B1=5450002006-06-13-anonymous-NFno factor TF: 1-69