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 statusMnStatusDetails254158613Composite: 1 known prime factor FactoredFactorDigitsBitsDate3999155989975165724572168.42018-06-06 11:48:01 HistoryDateUserTypeResult2025-03-14James HeinrichFFactor: 399915598997516572457 / TF: 68-702018-06-06NickFFactor: 399915598997516572457 / TF: 68-692015-06-26caddrNFno factor from 2^66 to 2^682013-11-19Yan Ruimin ChinaNFno factor from 2^65 to 2^662011-07-31sasaki3NFno factor from 2^64 to 2^652010-03-06carlos56NFno factor from 2^63 to 2^642010-03-06carlos56NFno factor from 2^62 to 2^63