Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails35283461Composite: proven not-prime with Lucas-Lehmer testNo factors below 274TF target 271P-1B1 = 420000B2 = 7455000LLStatusDateUserResidueShiftSoftwareVerified2007-05-28Jens-Uwe Voss6BB457AF1BD9E5BC18415640Windows,Prime95,v24 final,(aka Wc1)Verified2016-02-02Dubslow6BB457AF1BD9E5BC29773716Linux 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2020-02-22-anonymous-NFno factor TF: 73-742019-10-31-anonymous-NFno factor TF: 72-732019-10-31-anonymous-NFno factor TF: 71-722016-02-02DubslowC-LL6BB457AF1BD9E5BC2014-06-26Gordon SpenceNFno factor TF: 70-712014-06-19VictordeHollanderNFno factor TF: 69-702013-02-11LaurVNFno factor TF: 68-692012-03-14Carsten KossendeyNFno factor TF: 67-682007-05-28-anonymous-C-LL6BB457AF1BD9E5BC2007-02-20-anonymous-NF-PM1B1=420000, B2=74550002006-04-28USAFSSNFno factor TF: 1-672006-02-15USAFSSNFno factor TF: 1-672004-07-13-anonymous-NFno factor TF: 1-60