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 statusMnStatusDetails901928669Composite: 1 known prime factor FactoredFactorDigitsBitsDate4089948595763868097932168.52016-10-20 18:42:52 HistoryDateUserTypeResult2025-04-23yuriy5-1NFno factor from 2^69 to 2^742016-10-20ConductorFFactor: 408994859576386809793 / TF: 68-692016-06-15monstNFno factor from 2^67 to 2^682015-01-29Gordon SpenceNFno factor from 2^66 to 2^672012-08-17lindeeNFno factor from 2^65 to 2^662011-11-01lindeeNFno factor from 2^64 to 2^652010-06-26lindedNFno factor from 2^63 to 2^64