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 statusMnStatusDetails159710939No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1384000B2 = 1493889540 HistoryDateUserTypeResult2025-08-11GregNFno factor from 2^77 to 2^782025-07-08GregNFno factor from 2^76 to 2^772024-10-03Luke DurantNF-PM1B1=1384000, B2=14938895402024-09-01SRBaseNFno factor from 2^75 to 2^762023-03-01SRBaseNFno factor from 2^74 to 2^752018-03-06AyczlyNFno factor from 2^73 to 2^742018-03-06AyczlyNFno factor from 2^72 to 2^732018-02-24Craig JohnsonNFno factor from 2^71 to 2^722018-02-22roemer2201NFno factor from 2^70 to 2^712018-01-09La GüiraNFno factor from 2^69 to 2^702017-03-27XolotlNFno factor from 2^68 to 2^692016-05-20RDbrvnNFno factor from 2^67 to 2^682015-04-30S. EichsteiningerNFno factor from 2^66 to 2^672013-02-21RichardNFno factor from 2^65 to 2^662011-02-01runeskNFno factor from 2^64 to 2^65