Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332319833Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 2680000B2 = 62310000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82022-02-28Arthur L.15B58DCBD39EA9A08784215613HistoryDateUserTypeResult2023-10-18James HeinrichNFno factor TF: 67-682023-03-11Mark RoseNFno factor TF: 80-812022-03-14Jan S.CERTProof certified good2022-02-28Arthur L.C-PRP Proof Certified Good Proof Power: 82016-04-21NicahlosNF-PM1B1=2680000, B2=62310000, E=62016-03-31dh1NFno factor TF: 79-802016-03-31dh1NFno factor TF: 78-792016-03-31dh1NFno factor TF: 77-782016-03-31dh1NFno factor TF: 76-772016-01-29Team_InspectorNFno factor TF: 75-762015-03-21Team_InspectorNFno factor TF: 74-752013-11-07Team_InspectorNFno factor TF: 73-742011-08-22Grant McCrackenNFno factor TF: 72-732011-08-20Grant McCrackenNFno factor TF: 71-722011-05-25Grant McCrackenNFno factor TF: 70-712010-10-09SunfishNFno factor TF: 69-702009-09-05Team_InspectorNFno factor TF: 68-69