Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails137368097Composite: proven not-prime with PRP testNo factors below 277TF target 277P-1B1 = 676000B2 = 31127040PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=92025-02-09ky0uraku721281B388B76CBA5565668413HistoryDateUserTypeResult2025-02-09kkmrkkblmbrbkCERTProof certified good2025-02-09ky0urakuC-PRP Proof Certified Good Proof Power: 92024-09-17Ryan PropperNF-PM1B1=676000, B2=311270402024-08-04JacobZNFno factor TF: 76-772024-07-16JacobZNFno factor TF: 75-762023-01-19SRBaseNFno factor TF: 74-752021-07-31SRBaseNFno factor TF: 73-742020-10-27SRBaseNFno factor TF: 72-732016-09-17Will EdgingtonNFno factor TF: 71-722016-05-26DerekNFno factor TF: 70-712016-05-26Choi4KANGNFno factor TF: 69-702016-04-03Choi4KANGNFno factor TF: 68-692016-02-19dbaughNFno factor TF: 67-682015-02-03Karol TNFno factor TF: 66-672012-11-16RichardNFno factor TF: 65-662010-11-30Thomas StorkNFno factor TF: 64-652010-06-10Charles A. MorrisNFno factor TF: 63-64