Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332411921Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 1565000B2 = 354849180PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82020-09-05Albrecht Heeffer8C24DAA28A79C58C013HistoryDateUserTypeResult2023-02-08Mark RoseNF-PM1B1=1565000, B2=3548491802023-02-01Mark RoseNFno factor TF: 80-812020-09-05Ben DeloCERTProof certified good2020-09-05Albrecht HeefferC-PRP8C24DAA28A79C58C Proof Certified Good Proof Power: 82018-01-30Random GPUsNFno factor TF: 79-802018-01-30Random GPUsNFno factor TF: 78-792018-01-30Random GPUsNFno factor TF: 77-782018-01-30Random GPUsNFno factor TF: 76-772018-01-30Random GPUsNFno factor TF: 75-762016-04-10-anonymous-NFno factor TF: 74-752015-02-02XebecerNFno factor TF: 73-742013-04-07krackerNFno factor TF: 72-732013-02-28krackerNFno factor TF: 71-722012-10-10krackerNFno factor TF: 70-712012-06-30LaurVNFno factor TF: 69-702011-04-18Grant McCrackenNFno factor TF: 68-692011-04-17Grant McCrackenNFno factor TF: 67-68