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 statusMnStatusDetails840984731No known factors, not tested for primality TFNo factors below 275TF target 284 HistoryDateUserTypeResult2024-06-13SRBaseNFno factor from 2^74 to 2^752022-12-03SRBaseNFno factor from 2^73 to 2^742021-06-08SRBaseNFno factor from 2^72 to 2^732020-10-13SRBaseNFno factor from 2^71 to 2^722019-08-29srow7NFno factor from 2^70 to 2^712016-10-20ramgeisNFno factor from 2^68 to 2^702015-08-10sasakiNFno factor from 2^67 to 2^682015-02-05sasakiNFno factor from 2^66 to 2^672013-09-04america64NFno factor from 2^65 to 2^662010-10-07Architects CubedNFno factor from 2^64 to 2^652010-04-08Architects CubedNFno factor from 2^63 to 2^64