Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332309111Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 5305000B2 = 5305000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82025-11-15ANONYMOUSF10244483E646BB919956351913HistoryDateUserTypeResult2025-11-16KrieselCERTProof certified good2025-11-15ANONYMOUSC-PRPF10244483E646BB9 Proof Certified Good Proof Power: 82024-09-24Grant McCrackenNFno factor TF: 71-722024-04-22Grant McCrackenNFno factor TF: 70-712023-10-18James HeinrichNFno factor TF: 67-682023-01-20Mark RoseNFno factor TF: 80-812023-01-20Mark RoseNFno factor TF: 79-802020-09-15LOBESNFno factor TF: 78-792020-09-14Team_InspectorNFno factor TF: 77-782013-11-27Joel KnauerNFno factor TF: 76-772013-11-06Joel KnauerNF-PM1B1=53050002013-06-03Joel KnauerNFno factor TF: 75-762013-05-24Joel KnauerNFno factor TF: 74-752013-05-01Team_InspectorNFno factor TF: 73-742013-01-15LaurVNFno factor TF: 72-732011-06-22Grant McCrackenNFno factor TF: 71-722011-04-17Grant McCrackenNFno factor TF: 70-712010-05-25SunfishNFno factor TF: 69-702009-08-09Team_InspectorNFno factor TF: 68-69