Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails843112609Composite: proven not-prime with PRP testNo factors below 285TF target 285P-1B1 = 7520000B2 = 225600000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82021-07-04Kriesel1B72DD497BFF7A50013HistoryDateUserTypeResult2022-01-30DobriNFno factor TF: 71-722022-01-30DobriNFno factor TF: 1-702022-01-12George WoltmanCERTProof certified good2021-12-01George WoltmanCERTCertification bad2021-11-16KrieselCERTCertification bad2021-07-04KrieselC-PRP1B72DD497BFF7A50 Proof Certified Good Proof Power: 82020-10-26KrieselNF-PM1B1=7520000, B2=2256000002020-09-06KrieselNFno factor TF: 84-852020-09-06KrieselNFno factor TF: 82-832020-09-06KrieselNFno factor TF: 83-842020-09-06KrieselNFno factor TF: 78-792020-09-06KrieselNFno factor TF: 79-802020-09-06KrieselNFno factor TF: 80-812020-09-06KrieselNFno factor TF: 81-822020-09-06KrieselNFno factor TF: 75-762020-09-06KrieselNFno factor TF: 76-772020-09-06KrieselNFno factor TF: 77-782020-09-06KrieselNFno factor TF: 74-752020-09-06KrieselNFno factor TF: 72-732020-09-06KrieselNFno factor TF: 73-742020-09-06KrieselNFno factor TF: 71-722019-09-16srow7NFno factor TF: 70-712016-12-21ramgeisNFno factor TF: 68-702015-08-15sasakiNFno factor TF: 67-682015-02-09sasakiNFno factor TF: 66-672013-08-15america64NFno factor TF: 65-662010-10-06Architects CubedNFno factor TF: 64-652010-04-07Architects CubedNFno factor TF: 63-64