Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332721997Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 2861000B2 = 193280000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=72021-07-13Simon Josefsson2DBA550820530FAB17333758613HistoryDateUserTypeResult2023-03-26Mark RoseNFno factor TF: 80-812023-03-16Mark RoseNFno factor TF: 79-802023-02-27Mark RoseNFno factor TF: 78-792023-02-27Mark RoseNFno factor TF: 77-782021-07-13GrunwalderGIMPCERTProof certified good2021-07-13Simon JosefssonC-PRP2DBA550820530FAB Proof Certified Good Proof Power: 72021-05-16Simon JosefssonNF-PM1B1=2861000, B2=1932800002020-10-09Architects CubedNFno factor TF: 76-772020-07-03Team_InspectorNFno factor TF: 75-762016-05-09srow7NFno factor TF: 74-752015-08-06srow7NFno factor TF: 73-742014-03-24bayanneNFno factor TF: 72-732013-03-17LaurVNFno factor TF: 71-722013-02-01LaurVNFno factor TF: 70-712012-07-17LaurVNFno factor TF: 69-702012-04-12LaurVNFno factor TF: 68-692012-03-28LaurVNFno factor TF: 67-682010-10-29Architects CubedNFno factor TF: 66-67