Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails543656371Composite: proven not-prime with PRP testNo factors below 283TF target 283P-1B1 = 3000000B2 = 130000000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedPRP without proof (not generated)2022-12-27Kriesel424EF70C3F5E18BF39614300813VerifiedCertification FailedPower=72023-01-04Kriesel424EF70C3F5E18BF39614300813VerifiedCertified GoodPower=102024-09-27JohnHa0424EF70C3F5E18BF13381789813HistoryDateUserTypeResult2024-09-30KrieselCERTProof certified good2024-09-27JohnHa0C-PRP424EF70C3F5E18BF Proof Certified Good Proof Power: 102023-02-11KrieselCERTCert good, Proof bad2023-01-14KrieselCERTCert good, Proof bad2023-01-04KrieselC-PRP424EF70C3F5E18BF Proof Certification Failed Proof Power: 72022-12-27KrieselC-PRP424EF70C3F5E18BF Proof Certification Failed Proof Power: 72021-01-10KrieselNF-PM1B1=3000000, B2=1300000002018-07-04KrieselNFno factor TF: 82-832018-06-26KrieselNFno factor TF: 81-822018-06-01KrieselNF-PM1B1=3345000, B2=3345000, E=22018-05-21KrieselNFno factor TF: 80-812018-05-21KrieselNFno factor TF: 79-802018-05-21KrieselNFno factor TF: 78-792018-05-21KrieselNFno factor TF: 77-782018-05-21KrieselNFno factor TF: 76-772018-05-21KrieselNFno factor TF: 75-762018-05-21KrieselNFno factor TF: 74-752018-05-21KrieselNFno factor TF: 73-742018-05-21KrieselNFno factor TF: 72-732018-05-21KrieselNFno factor TF: 71-722018-05-21KrieselNFno factor TF: 70-712018-05-21KrieselNFno factor TF: 69-702018-01-26sasakiNFno factor TF: 68-692016-11-02sasakiNFno factor TF: 67-682016-01-17sasakiNFno factor TF: 66-672014-10-20sasakiNFno factor TF: 65-66