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 statusMnStatusDetails155047751Composite: 1 known prime factor FactoredFactorDigitsBitsDate16280902504589125172472270.52017-09-28 00:29:04 HistoryDateUserTypeResult2017-09-28Sergey NosovFFactor: 1628090250458912517247 / TF: 70-72*2017-07-31EratosthenesNFno factor from 2^69 to 2^702017-03-03rubikvn2100NFno factor from 2^68 to 2^692016-05-02Dave BellNFno factor from 2^67 to 2^682015-04-10tscNFno factor from 2^66 to 2^672013-02-02-Anonymous-NFno factor from 2^65 to 2^662011-01-22sasaki3NFno factor from 2^64 to 2^652010-06-26Dalos LeeNFno factor from 2^63 to 2^64