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 statusMnStatusDetails158286313No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1412000B2 = 1717704450 HistoryDateUserTypeResult2025-06-15lazybeeNFno factor from 2^77 to 2^782025-06-08Gordon BowerNFno factor from 2^76 to 2^772024-08-26SRBaseNFno factor from 2^75 to 2^762024-08-09Luke DurantNF-PM1B1=1412000, B2=17177044502023-02-26SRBaseNFno factor from 2^74 to 2^752021-11-21SRBaseNFno factor from 2^73 to 2^742018-11-04glennpatNFno factor from 2^72 to 2^732018-09-29proxy2222NFno factor from 2^71 to 2^722018-03-25proxy2222NFno factor from 2^70 to 2^712017-11-06Torikova_SvetlanaNFno factor from 2^69 to 2^702017-03-10SummyNFno factor from 2^68 to 2^692016-05-12Jason UNFno factor from 2^67 to 2^682015-04-24HBendtzNFno factor from 2^66 to 2^672013-02-14Charles A. MorrisNFno factor from 2^65 to 2^662011-01-29AliNFno factor from 2^64 to 2^652010-06-27Torchwood InstituteNFno factor from 2^63 to 2^64