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 statusMnStatusDetails124539193Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 943000B2 = 47135340 PRPStatusDateUserResidueShiftTypeBaseVerified2024-01-22Dmitry BolshakovE82739B0E8C7E0007767834913 HistoryDateUserTypeResult2024-05-08James HeinrichNFno factor from 2^70 to 2^712024-01-22MirraCERTPRP CertificationCERT proof power = 8Proof certified good2024-01-22Dmitry BolshakovC-PRPE82739B0E8C7E000PRP proof power = 8PRP: VerifiedProof certified good2024-01-18Dmitry BolshakovNF-PM1B1=943000, B2=471353402022-07-24Runtime ErrorNFno factor from 2^76 to 2^772022-07-24RichD0NFno factor from 2^75 to 2^762022-07-23rduerrNFno factor from 2^74 to 2^752021-07-09SRBaseNFno factor from 2^73 to 2^742020-10-28SRBaseNFno factor from 2^72 to 2^732016-03-14SourceBinary.comNFno factor from 2^71 to 2^722015-09-14Josh FamestadNFno factor from 2^70 to 2^712015-06-27Judge HaleNFno factor from 2^69 to 2^702015-06-27Judge HaleNFno factor from 2^68 to 2^692015-06-27Judge HaleNFno factor from 2^67 to 2^682014-12-22HBendtzNFno factor from 2^66 to 2^672012-09-04tscNFno factor from 2^65 to 2^662010-10-29Charles A. MorrisNFno factor from 2^64 to 2^652010-05-23sasaki3NFno factor from 2^63 to 2^64