Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails39933337Composite: proven not-prime with Lucas-Lehmer testNo factors below 274TF target 272P-1B1 = 640000B2 = 640000LLStatusDateUserResidueShiftSoftwareBad2009-04-10curtisc82FDE799AC1595539247493Windows Service,Prime95,v25.8,build 1Verified2016-01-28Richard3F6ABF63E376EE0E37520909Linux 64-bit,Prime95,v28.7,build 1Verified2016-06-09-anonymous-3F6ABF63E376EE0E11427093Windows 64-bit,Prime95,v28.7,build 1HistoryDateUserTypeResult2020-01-26-anonymous-NFno factor TF: 73-742019-10-18-anonymous-NFno factor TF: 72-732019-03-17monstNFno factor TF: 71-722016-06-09-anonymous-C-LL3F6ABF63E376EE0E2016-01-28RichardC-LL3F6ABF63E376EE0E2014-12-15Mark RoseNFno factor TF: 70-712014-12-14Andrew BNFno factor TF: 69-702013-10-05Le ComteNFno factor TF: 68-692009-04-10curtiscC-LL82FDE799AC1595532008-04-24-anonymous-NF-PM1B1=6400002006-11-28JC_HerlesNFno factor TF: 1-68