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 statusMnStatusDetails153453827No known factors, not tested for primality TFNo factors below 278TF target 278 P-1B1 = 1337000B2 = 1518739200 HistoryDateUserTypeResult2025-07-03ElectricBillNFno factor from 2^77 to 2^782025-01-12James HeinrichNFno factor from 2^76 to 2^772024-09-25Luke DurantNF-PM1B1=1337000, B2=15187392002024-07-20Jarod McClintockNFno factor from 2^72 to 2^732024-03-24La GüiraNFno factor from 2^75 to 2^762023-02-16SRBaseNFno factor from 2^74 to 2^752021-11-29SRBaseNFno factor from 2^73 to 2^742017-12-01BigHeadScientistNFno factor from 2^72 to 2^732017-06-11Sergey NosovNFno factor from 2^70 to 2^722017-05-30La GüiraNFno factor from 2^69 to 2^702017-02-26XolotlNFno factor from 2^68 to 2^692016-04-27SteinfattNFno factor from 2^67 to 2^682015-04-03rubikvn2100NFno factor from 2^66 to 2^672013-01-28RichardNFno factor from 2^65 to 2^662011-01-19Charles A. MorrisNFno factor from 2^64 to 2^652010-06-28NumberwangNFno factor from 2^63 to 2^64