Exponent Range: to+ above minimum exponent Output results in HTML format Output results in text-only format Output results in plain-text format Show full details (current assignment, history, LL residues) Include full ECM history (every "NF-ECM" result, slow) Include ancient history logs (1997-2007, slow) Include expired assignments Show software version in historyGet statusMnStatusDetails137771297Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 676000B2 = 31127040 PRPStatusDateUserResidueShiftTypeBaseVerified2025-04-27maxmojo86280A51063B5EC78413752377813 HistoryDateUserTypeResult2025-04-27jpetroniCERTPRP CertificationCERT proof power = 8Proof certified good2025-04-27maxmojo86C-PRP280A51063B5EC784PRP proof power = 8PRP: VerifiedProof certified good2024-09-18Ryan PropperNF-PM1B1=676000, B2=311270402024-07-07ANONYMOUSNFno factor from 2^76 to 2^772024-07-05ResolverNFno factor from 2^75 to 2^762023-01-12SRBaseNFno factor from 2^74 to 2^752021-07-31SRBaseNFno factor from 2^73 to 2^742020-10-25SRBaseNFno factor from 2^72 to 2^732016-09-04Klaus NordmannNFno factor from 2^71 to 2^722016-09-02Mihai PredaNFno factor from 2^70 to 2^712016-02-22La GüiraNFno factor from 2^69 to 2^702016-02-22La GüiraNFno factor from 2^68 to 2^692016-02-22La GüiraNFno factor from 2^67 to 2^682015-02-05aurashiftNFno factor from 2^66 to 2^672012-11-23RichardNFno factor from 2^65 to 2^662010-12-01OS1NFno factor from 2^64 to 2^652010-06-11OS1NFno factor from 2^63 to 2^64