Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails84191827Composite: proven not-prime with PRP testNo factors below 276TF target 275P-1B1 = 670000B2 = 12730000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedPRP without proof (not generated)2019-05-18ATH948459C219547B391167764813VerifiedCertified GoodPower=82021-11-11ATH948459C219547B39013HistoryDateUserTypeResult2021-11-11techn1ciaNCERTProof certified good2021-11-11ATHC-PRP948459C219547B39 Proof Certified Good Proof Power: 82019-05-18ATHC-PRP948459C219547B39 Proof Certified Good Proof Power: 82019-04-24ATHNFno factor TF: 1-632019-04-24ATHNFno factor TF: 63-642017-10-29storm5510NF-PM1B1=670000, B2=12730000, E=62017-04-19TheJudgerNFno factor TF: 74-752017-04-19TheJudgerNFno factor TF: 75-762017-03-13gcardonaNFno factor TF: 73-742017-01-12Judge HaleNFno factor TF: 71-722017-01-12Judge HaleNFno factor TF: 72-732014-08-30SMoffatNFno factor TF: 70-712014-06-26sannerud.comNFno factor TF: 69-702014-06-19albin_pouillesNFno factor TF: 68-692014-04-14Preben SNFno factor TF: 67-682014-04-12SMoffatNFno factor TF: 66-672012-08-13Carsten KossendeyNFno factor TF: 65-662010-12-13Architects CubedNFno factor TF: 64-65