Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails38289583Composite: proven not-prime with Lucas-Lehmer testNo factors below 275TF target 271P-1B1 = 430000B2 = 10105000LLStatusDateUserResidueShiftSoftwareVerified2010-07-10Reed_YoungAF200C00F44D0F78897952Linux 64-bit,Prime95,v25.9,build 4Verified2015-08-25-anonymous-AF200C00F44D0F785621695Windows,Prime95,v25.11,build 2HistoryDateUserTypeResult2020-08-25Smok_bmv NFno factor TF: 74-752020-02-21-anonymous-NFno factor TF: 73-742019-10-19-anonymous-NFno factor TF: 72-732019-10-19-anonymous-NFno factor TF: 71-722015-08-25-anonymous-C-LLAF200C00F44D0F782014-12-03NickOfTimeNFno factor TF: 70-712014-11-20VictordeHollanderNFno factor TF: 69-702010-07-10Reed_YoungC-LLAF200C00F44D0F782010-03-16Mr P-1NF-PM1B1=430000, B2=101050002006-07-10-anonymous-NFno factor TF: 1-692003-09-14-anonymous-NFno factor TF: 1-592003-09-09-anonymous-NFno factor TF: 1-60