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 statusMnStatusDetails167805637No known factors, not tested for primality TFNo factors below 276TF target 278 HistoryDateUserTypeResult2024-09-13SRBaseNFno factor from 2^75 to 2^762023-03-16SRBaseNFno factor from 2^74 to 2^752021-12-13SRBaseNFno factor from 2^73 to 2^742018-04-11workerthreadNFno factor from 2^72 to 2^732018-04-06workerthreadNFno factor from 2^71 to 2^722018-03-25nate.andersNFno factor from 2^70 to 2^712015-03-16La GüiraNFno factor from 2^69 to 2^702015-03-16La GüiraNFno factor from 2^68 to 2^692015-03-16La GüiraNFno factor from 2^66 to 2^682013-03-25RichardNFno factor from 2^65 to 2^662011-02-15Mr-PlonkNFno factor from 2^64 to 2^652010-07-07Charles A. MorrisNFno factor from 2^63 to 2^64