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 statusMnStatusDetails181612759Composite: 1 known prime factor FactoredFactorDigitsBitsDate678083272865432549719432375.82024-10-08 14:01:27 HistoryDateUserTypeResult2025-06-03GregFFactor: 67808327286543254971943 / TF: 75-762024-10-08SRBaseFFactor: 67808327286543254971943 / TF: 75-76*2023-04-09SRBaseNFno factor from 2^74 to 2^752022-01-08SRBaseNFno factor from 2^73 to 2^742018-10-25sasakiNFno factor from 2^72 to 2^732018-10-25Valerio BellizzomiNFno factor from 2^71 to 2^722018-04-17ZenghuiNFno factor from 2^70 to 2^712018-04-06ZenghuiNFno factor from 2^69 to 2^702017-06-02rmaximusNFno factor from 2^68 to 2^692016-07-06rubikvn2100NFno factor from 2^67 to 2^682015-07-29vwflat4NFno factor from 2^66 to 2^672013-05-06-Anonymous-NFno factor from 2^65 to 2^662011-03-23Nathan EdingtonNFno factor from 2^64 to 2^652010-07-23sasaki3NFno factor from 2^63 to 2^64