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 statusMnStatusDetails902208199Composite: 1 known prime factor FactoredFactorDigitsBitsDate5289176867037307590492168.82016-10-23 14:02:56 HistoryDateUserTypeResult2025-04-23yuriy5-1NFno factor from 2^69 to 2^742016-10-23ConductorFFactor: 528917686703730759049 / TF: 68-692016-06-09ConductorNFno factor from 2^67 to 2^682015-01-30Gordon SpenceNFno factor from 2^66 to 2^672013-04-25ramgeisNFno factor from 2^65 to 2^662011-01-21lindeeNFno factor from 2^64 to 2^652010-06-24lindeeNFno factor from 2^63 to 2^64