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 statusMnStatusDetails131405983Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1058000B2 = 750671460 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-15Mihai PredaFFF399E64202E378013 HistoryDateUserTypeResult2024-09-15MersennePrimesFinderCERTPRP CertificationCERT proof power = 11Proof certified good2024-09-15Mihai PredaC-PRPFFF399E64202E378PRP proof power = 11PRP: VerifiedProof certified good2024-08-18Luke DurantNF-PM1B1=1058000, B2=7506714602023-06-041997rj7NFno factor from 2^76 to 2^772023-01-23JurzalNFno factor from 2^75 to 2^762022-12-31SRBaseNFno factor from 2^74 to 2^752021-07-20SRBaseNFno factor from 2^73 to 2^742020-10-22SRBaseNFno factor from 2^72 to 2^732016-05-30d3zorgNFno factor from 2^71 to 2^722016-05-29Smok_bmv NFno factor from 2^70 to 2^712012-12-31VictordeHollanderNFno factor from 2^69 to 2^702012-09-17VictordeHollanderNFno factor from 2^68 to 2^692012-09-17VictordeHollanderNFno factor from 2^65 to 2^682010-11-15carlos56NFno factor from 2^64 to 2^652010-06-02Torchwood InstituteNFno factor from 2^63 to 2^64