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 statusMnStatusDetails167473343No known factors, not tested for primality TFNo factors below 277TF target 278 HistoryDateUserTypeResult2024-09-21La GüiraNFno factor from 2^76 to 2^772024-08-15La GüiraNFno factor from 2^75 to 2^762024-06-08James HeinrichNFno factor from 2^68 to 2^692023-03-16SRBaseNFno factor from 2^74 to 2^752021-12-13SRBaseNFno factor from 2^73 to 2^742018-03-10bayanneNFno factor from 2^72 to 2^732018-03-08Scott BennettNFno factor from 2^71 to 2^722018-03-06Aare VesiNFno factor from 2^70 to 2^712018-03-05La GüiraNFno factor from 2^69 to 2^702017-01-13ConductorNFno factor from 2^68 to 2^692016-06-07rubikvn2100NFno factor from 2^67 to 2^682015-06-01Jason UNFno factor from 2^66 to 2^672013-03-20Charles A. MorrisNFno factor from 2^65 to 2^662011-04-16Sergej LevinNFno factor from 2^64 to 2^652010-07-06lindeeNFno factor from 2^63 to 2^64