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 statusMnStatusDetails132277721Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 905000B2 = 206457090 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-20Luke Durant40C627208A2E35F1013 HistoryDateUserTypeResult2024-09-20Luke DurantCERTPRP CertificationCERT proof power = 9Proof certified good2024-09-20Luke DurantC-PRP40C627208A2E35F1PRP proof power = 9PRP: VerifiedProof certified good2024-05-09Bricyn JamesonNF-PM1B1=905000, B2=2064570902023-10-30TravisJankNFno factor from 2^76 to 2^772023-10-30TravisJankNFno factor from 2^75 to 2^762022-12-28SRBaseNFno factor from 2^74 to 2^752016-01-03dbaughNFno factor from 2^73 to 2^742016-01-03dbaughNFno factor from 2^72 to 2^732016-01-03dbaughNFno factor from 2^71 to 2^722016-01-03dbaughNFno factor from 2^70 to 2^712016-01-03dbaughNFno factor from 2^69 to 2^702014-10-13mikrNFno factor from 2^68 to 2^692014-10-13mikrNFno factor from 2^66 to 2^682012-10-15sasaki3NFno factor from 2^65 to 2^662010-11-16Charles A. MorrisNFno factor from 2^64 to 2^652010-06-03Mr-PlonkNFno factor from 2^63 to 2^64