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 statusMnStatusDetails131871911Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 741000B2 = 62504130 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-30Luke DurantF9978B53818EF3328074978913 HistoryDateUserTypeResult2024-09-30Peter MayesCERTPRP CertificationCERT proof power = 8Proof certified good2024-09-30Luke DurantC-PRPF9978B53818EF332PRP proof power = 8PRP: VerifiedProof certified good2024-08-21oodairaNF-PM1B1=741000, B2=625041302023-09-28mrk74NFno factor from 2^76 to 2^772023-08-10Brent GoebelNFno factor from 2^75 to 2^762023-01-02SRBaseNFno factor from 2^74 to 2^752021-07-22SRBaseNFno factor from 2^73 to 2^742020-10-22SRBaseNFno factor from 2^72 to 2^732016-01-10PascalBieriNFno factor from 2^71 to 2^722015-12-26PascalBieriNFno factor from 2^70 to 2^712013-01-26VictordeHollanderNFno factor from 2^69 to 2^702012-10-01VictordeHollanderNFno factor from 2^68 to 2^692012-10-01VictordeHollanderNFno factor from 2^65 to 2^682010-11-15sasaki3NFno factor from 2^64 to 2^652010-06-03Torchwood InstituteNFno factor from 2^63 to 2^64