Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332713649Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 2610000B2 = 101516000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=72021-07-15Simon Josefsson1DF583E0D3EF8C329793276213HistoryDateUserTypeResult2023-03-26Mark RoseNFno factor TF: 80-812023-03-15Mark RoseNFno factor TF: 79-802023-02-27Mark RoseNFno factor TF: 78-792023-02-27Mark RoseNFno factor TF: 77-782021-07-16Richard WL RidleyCERTProof certified good2021-07-15Simon JosefssonC-PRP1DF583E0D3EF8C32 Proof Certified Good Proof Power: 72021-05-16Simon JosefssonNF-PM1B1=2610000, B2=1015160002020-10-24bayanneNFno factor TF: 76-772020-06-26bayanneNFno factor TF: 75-762016-04-18VictordeHollanderNFno factor TF: 74-752015-08-03srow7NFno factor TF: 73-742014-03-18bayanneNFno factor TF: 72-732013-03-16LaurVNFno factor TF: 71-722013-02-01LaurVNFno factor TF: 70-712012-07-16LaurVNFno factor TF: 69-702012-04-12LaurVNFno factor TF: 68-692012-03-27LaurVNFno factor TF: 67-682010-10-29Architects CubedNFno factor TF: 66-67