Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332220943Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 3000000B2 = 79500000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=102021-12-28arnaudAF279EB453C05E8F28856490313HistoryDateUserTypeResult2023-10-18James HeinrichNFno factor TF: 67-682023-03-14Mark RoseNFno factor TF: 80-812023-03-14Mark RoseNFno factor TF: 79-802022-08-17ANONYMOUSCERTProof certified good2021-12-28arnaudC-PRPAF279EB453C05E8F Proof Certified Good Proof Power: 102015-06-23aurashiftNF-PM1B1=3000000, B2=79500000, E=122011-03-05TheJudgerNFno factor TF: 77-782011-03-05TheJudgerNFno factor TF: 78-792011-03-05TheJudgerNFno factor TF: 76-772011-03-05TheJudgerNFno factor TF: 75-762010-03-17johnzanNFno factor TF: 74-752010-03-12johnzanNFno factor TF: 73-742010-03-09Team_InspectorNFno factor TF: 72-732010-02-04Team_InspectorNFno factor TF: 71-722010-01-29Team_InspectorNFno factor TF: 70-712009-02-26Team_InspectorNFno factor TF: 69-702008-12-05Team_InspectorNFno factor TF: 68-69