Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails137396891Composite: proven not-prime with PRP testNo factors below 277TF target 277P-1B1 = 676000B2 = 31127040PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=92025-02-11Mirra728AF82E28DA0416013HistoryDateUserTypeResult2025-02-11stenleiCERTProof certified good2025-02-11MirraC-PRP728AF82E28DA0416 Proof Certified Good Proof Power: 92024-09-16Ryan PropperNF-PM1B1=676000, B2=311270402024-07-26minikv116NFno factor TF: 76-772024-06-25mezonNFno factor TF: 75-762016-02-11endless_mikeNFno factor TF: 74-752016-02-11endless_mikeNFno factor TF: 73-742016-02-11endless_mikeNFno factor TF: 72-732016-02-11endless_mikeNFno factor TF: 71-722016-02-11endless_mikeNFno factor TF: 70-712016-02-11endless_mikeNFno factor TF: 69-702016-02-11endless_mikeNFno factor TF: 68-692016-02-11endless_mikeNFno factor TF: 67-682015-02-03vwflat4NFno factor TF: 66-672012-11-12sasaki3NFno factor TF: 65-662010-12-20James HintzNFno factor TF: 64-652010-06-10Charles A. MorrisNFno factor TF: 63-64