Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332328527Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 1900000B2 = 80000000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82021-09-29Chelle54208C2F8CBEDD1C24631889613HistoryDateUserTypeResult2024-02-21Grant McCrackenNFno factor TF: 68-692023-10-18James HeinrichNFno factor TF: 67-682021-09-30blin00CERTProof certified good2021-09-29ChelleC-PRP54208C2F8CBEDD1C Proof Certified Good Proof Power: 82021-06-24KrieselNF-PM1B1=1900000, B2=800000002021-06-24KrieselNFno factor TF: 80-812021-06-24KrieselNFno factor TF: 79-802021-06-24KrieselNFno factor TF: 78-792021-05-24Jon PaceNFno factor TF: 77-782021-05-24Jon PaceNFno factor TF: 76-772016-04-12Team_InspectorNFno factor TF: 75-762014-04-20Preben SNFno factor TF: 74-752014-01-03Team_InspectorNFno factor TF: 73-742013-01-17LaurVNFno factor TF: 72-732012-06-16Grant McCrackenNFno factor TF: 71-722011-04-24Grant McCrackenNFno factor TF: 70-712010-12-16SunfishNFno factor TF: 69-702010-03-30Grant McCrackenNFno factor TF: 68-69