Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332212247Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 2975000B2 = 83300000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=72026-01-20Simon JosefssonE8E5806D3E45611713443949713HistoryDateUserTypeResult2026-01-21KrieselCERTProof certified good2026-01-20Simon JosefssonC-PRPE8E5806D3E456117 Proof Certified Good Proof Power: 72024-02-25James HeinrichNFno factor TF: 70-712024-02-25James HeinrichNFno factor TF: 69-702024-02-25James HeinrichNFno factor TF: 68-692023-10-18James HeinrichNFno factor TF: 67-682020-10-12Albrecht HeefferNFno factor TF: 80-812020-10-11Albrecht HeefferNFno factor TF: 79-802020-08-02Team_InspectorNFno factor TF: 78-792016-06-26aurashiftNF-PM1B1=2975000, B2=83300000, E=122015-06-17Luigi MorelliNFno factor TF: 77-782014-09-21Team_InspectorNFno factor TF: 76-772011-02-08Sebastian HornbostelNFno factor TF: 75-762010-03-17-anonymous-NFno factor TF: 70-712010-03-17-anonymous-NFno factor TF: 68-692010-03-17-anonymous-NFno factor TF: 69-702009-04-30eugenio.correntiNFno factor TF: 74-752009-04-22eugenio.correntiNFno factor TF: 73-742009-04-19eugenio.correntiNFno factor TF: 72-732009-04-18eugenio.correntiNFno factor TF: 71-722009-04-17eugenio.correntiNFno factor TF: 70-712009-04-16eugenio.correntiNFno factor TF: 69-702009-01-14Team_InspectorNFno factor TF: 68-69