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 statusMnStatusDetails905700253Composite: 1 known prime factor FactoredFactorDigitsBitsDate4211944890986599337932168.52017-04-19 09:56:26 HistoryDateUserTypeResult2025-04-24yuriy5-1NFno factor from 2^69 to 2^742017-04-19ConductorFFactor: 421194489098659933793 / TF: 68-692016-06-21ConductorNFno factor from 2^67 to 2^682015-02-06Gordon SpenceNFno factor from 2^66 to 2^672013-04-25ramgeisNFno factor from 2^65 to 2^662011-11-01lindeeNFno factor from 2^64 to 2^652010-07-09lindedNFno factor from 2^63 to 2^64