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 statusMnStatusDetails144525253No known factors, not tested for primality TFNo factors below 277TF target 277 P-1B1 = 1250000B2 = 1302597120 HistoryDateUserTypeResult2024-12-31ihnlNFno factor from 2^76 to 2^772024-10-10Luke DurantNF-PM1B1=1250000, B2=13025971202024-07-20Jarod McClintockNFno factor from 2^71 to 2^722024-07-19SRBaseNFno factor from 2^75 to 2^762023-01-27SRBaseNFno factor from 2^74 to 2^752021-11-12SRBaseNFno factor from 2^73 to 2^742020-10-25SRBaseNFno factor from 2^72 to 2^732017-05-02BigHeadScientistNFno factor from 2^71 to 2^722017-04-26megavinkNFno factor from 2^70 to 2^712017-03-01La GüiraNFno factor from 2^69 to 2^702017-03-01La GüiraNFno factor from 2^68 to 2^692016-09-04XolotlNFno factor from 2^67 to 2^682015-03-01aurashiftNFno factor from 2^66 to 2^672012-12-19Charles A. MorrisNFno factor from 2^65 to 2^662010-12-23sasaki3NFno factor from 2^64 to 2^652010-06-21subgeniusNFno factor from 2^63 to 2^64