Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails137479423Composite: proven not-prime with PRP testNo factors below 277TF target 277P-1B1 = 676000B2 = 31127040PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=92025-03-04Mirra17C891079EDC21B0013HistoryDateUserTypeResult2025-03-04featherCERTProof certified good2025-03-04MirraC-PRP17C891079EDC21B0 Proof Certified Good Proof Power: 92024-09-17Ryan PropperNF-PM1B1=676000, B2=311270402024-07-28Luke DurantNFno factor TF: 76-772024-06-18JacobZNFno factor TF: 75-762023-01-12SRBaseNFno factor TF: 74-752021-07-31SRBaseNFno factor TF: 73-742020-10-27SRBaseNFno factor TF: 72-732016-09-15nate.andersNFno factor TF: 71-722016-09-13nate.andersNFno factor TF: 70-712016-03-10dbaughNFno factor TF: 69-702016-02-17dbaughNFno factor TF: 68-692016-02-10ssatenethNFno factor TF: 67-682015-02-04FuesslerNFno factor TF: 66-672012-11-12sasaki3NFno factor TF: 65-662010-11-30sasaki3NFno factor TF: 64-652010-06-11Charles A. MorrisNFno factor TF: 63-64