Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332217121Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 3000000B2 = 79500000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=102022-01-16FlaJunkieFB780DD852EB2EBB17964440813HistoryDateUserTypeResult2023-10-18James HeinrichNFno factor TF: 67-682023-03-29Mark RoseNFno factor TF: 80-812023-03-29Mark RoseNFno factor TF: 79-802022-01-16Ben DeloCERTProof certified good2022-01-16FlaJunkieC-PRPFB780DD852EB2EBB Proof Certified Good Proof Power: 102015-06-22aurashiftNF-PM1B1=3000000, B2=79500000, E=122011-02-08Luigi MorelliNFno factor TF: 78-792011-02-06Luigi MorelliNFno factor TF: 77-782011-02-06Luigi MorelliNFno factor TF: 76-772011-02-06Luigi MorelliNFno factor TF: 75-762009-05-21ANONYMOUSNFno factor TF: 74-752009-05-11ANONYMOUSNFno factor TF: 73-742009-05-05ANONYMOUSNFno factor TF: 72-732008-11-29werdwerdusNFno factor TF: 71-722008-11-29werdwerdusNFno factor TF: 70-712008-11-28werdwerdusNFno factor TF: 69-702008-11-28werdwerdusNFno factor TF: 68-69