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 statusMnStatusDetails157053859No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1360000B2 = 1460504760 HistoryDateUserTypeResult2025-06-18brian-nebiusNFno factor from 2^77 to 2^782025-01-09Ethan O'ConnorNFno factor from 2^76 to 2^772024-09-29Luke DurantNF-PM1B1=1360000, B2=14605047602024-08-26SRBaseNFno factor from 2^75 to 2^762024-05-06GregNFno factor from 2^68 to 2^692023-02-22SRBaseNFno factor from 2^74 to 2^752021-11-30SRBaseNFno factor from 2^73 to 2^742018-02-22David HruskaNFno factor from 2^72 to 2^732017-12-17David HruskaNFno factor from 2^71 to 2^722017-11-05David HruskaNFno factor from 2^70 to 2^712016-08-11La GüiraNFno factor from 2^69 to 2^702016-07-22Josh FamestadNFno factor from 2^68 to 2^692016-05-07James HintzNFno factor from 2^67 to 2^682015-04-17Jason UNFno factor from 2^66 to 2^672013-02-09HBendtzNFno factor from 2^65 to 2^662011-01-27dslNFno factor from 2^64 to 2^652010-06-26carlos56NFno factor from 2^63 to 2^64