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 statusMnStatusDetails478990199Composite: 1 known prime factor FactoredFactorDigitsBitsDate4493891475672579974472168.62017-12-07 06:29:19 HistoryDateUserTypeResult2017-12-07ky0urakuFFactor: 449389147567257997447 / TF: 68-692016-06-14sasakiNFno factor from 2^67 to 2^682016-04-10sasakiNFno factor from 2^66 to 2^672014-10-12RichardNFno factor from 2^65 to 2^662011-12-12mmNFno factor from 2^64 to 2^652010-03-31Architects CubedNFno factor from 2^63 to 2^64