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 statusMnStatusDetails159451559No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1350000B2 = 1167339030 HistoryDateUserTypeResult2025-07-15Gordon BowerNFno factor from 2^77 to 2^782025-07-03GregNFno factor from 2^76 to 2^772024-09-11Luke DurantNF-PM1B1=1350000, B2=11673390302024-08-26SRBaseNFno factor from 2^75 to 2^762023-03-01SRBaseNFno factor from 2^74 to 2^752021-11-22SRBaseNFno factor from 2^73 to 2^742018-01-08BrandonNFno factor from 2^72 to 2^732017-12-29Will EdgingtonNFno factor from 2^71 to 2^722017-12-29Will EdgingtonNFno factor from 2^70 to 2^712017-12-27La GüiraNFno factor from 2^69 to 2^702017-03-17johnsilverNFno factor from 2^68 to 2^692016-05-19ConductorNFno factor from 2^67 to 2^682015-04-29Walter van BoerNFno factor from 2^66 to 2^672013-02-18Charles A. MorrisNFno factor from 2^65 to 2^662011-01-31oodairaNFno factor from 2^64 to 2^65