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 statusMnStatusDetails137345909Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 676000B2 = 31127040 PRPStatusDateUserResidueShiftTypeBaseVerified2025-01-27geowF00079DF2F8542D7013 HistoryDateUserTypeResult2025-01-28Dusan ZavodnyCERTPRP CertificationCERT proof power = 8Proof certified good2025-01-27geowC-PRPF00079DF2F8542D7PRP proof power = 8PRP: VerifiedProof certified good2024-09-16Ryan PropperNF-PM1B1=676000, B2=311270402024-07-20RichardNFno factor from 2^76 to 2^772024-06-20La GüiraNFno 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 2^732016-11-25arnaudNFno factor from 2^71 to 2^722016-11-25proxy2222NFno factor from 2^70 to 2^712016-05-22Choi4KANGNFno factor from 2^69 to 2^702016-04-03Choi4KANGNFno factor from 2^68 to 2^692016-02-19dbaughNFno factor from 2^67 to 2^682015-02-03tscNFno factor from 2^66 to 2^672012-11-13Arne KleppestrandNFno factor from 2^65 to 2^662010-11-30Torchwood InstituteNFno factor from 2^64 to 2^652010-06-21RichardNFno factor from 2^63 to 2^64