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 statusMnStatusDetails154163743No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1315000B2 = 1832867400 HistoryDateUserTypeResult2025-05-12JohnnyBGoodNF-PM1B1=1315000, B2=18328674002025-05-04golfer_at_homeNFno factor from 2^77 to 2^782024-10-06mezonNFno factor from 2^76 to 2^772024-08-13SRBaseNFno factor from 2^75 to 2^762023-02-16SRBaseNFno factor from 2^74 to 2^752017-07-23SRS TechnologyNFno factor from 2^73 to 2^742017-07-23SRS TechnologyNFno factor from 2^72 to 2^732017-07-23SRS TechnologyNFno factor from 2^71 to 2^722017-07-23SRS TechnologyNFno factor from 2^70 to 2^712016-06-26DerekNFno factor from 2^69 to 2^702016-06-25DerekNFno factor from 2^68 to 2^692016-04-28BJBNFno factor from 2^67 to 2^682015-04-07Andrew BNFno factor from 2^66 to 2^672013-01-29HardyP GermanyNFno factor from 2^65 to 2^662011-01-20Charles A. MorrisNFno factor from 2^64 to 2^652010-06-25Charles A. MorrisNFno factor from 2^63 to 2^64