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 statusMnStatusDetails157001021No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1400000B2 = 1699813500 HistoryDateUserTypeResult2025-06-180xNFno factor from 2^77 to 2^782025-01-09RichardNFno factor from 2^76 to 2^772024-08-19SRBaseNFno factor from 2^75 to 2^762024-08-08Luke DurantNF-PM1B1=1400000, B2=16998135002019-01-27mikrNFno factor from 2^74 to 2^752019-01-27mikrNFno factor from 2^73 to 2^742018-04-24Andrew BNFno factor from 2^72 to 2^732018-02-22David HruskaNFno factor from 2^71 to 2^722017-12-17David HruskaNFno factor from 2^70 to 2^712017-11-05David HruskaNFno factor from 2^69 to 2^702017-03-01KrisDNFno factor from 2^68 to 2^692016-05-07johnsilverNFno factor from 2^67 to 2^682015-04-17tscNFno factor from 2^66 to 2^672013-02-09Charles A. MorrisNFno factor from 2^65 to 2^662011-01-27sasaki3NFno factor from 2^64 to 2^652010-06-30RichardNFno factor from 2^63 to 2^64