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 statusMnStatusDetails111851693Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 428000B2 = 25409670 PRPStatusDateUserResidueShiftTypeBaseVerified2022-03-22heiopei74C2CAE26507F8AD5039359713 HistoryDateUserTypeResult2024-01-22Architects CubedNF-PM1B1=428000, B2=254096702022-03-22Ratchet ZufreurCERTPRP CertificationCERT proof power = 8Proof certified good2022-03-22heiopeiC-PRP74C2CAE26507F8ADPRP proof power = 8PRP: VerifiedProof certified good2021-01-14arpcarNFno factor from 2^76 to 2^772020-12-07arpcarNFno factor from 2^75 to 2^762020-12-04La GüiraNFno factor from 2^74 to 2^752020-06-15Dylan DelgadoNFno factor from 2^73 to 2^742014-12-10FredrikNFno factor from 2^72 to 2^732014-12-10FredrikNFno factor from 2^71 to 2^722014-12-10FredrikNFno factor from 2^70 to 2^712014-12-10FredrikNFno factor from 2^69 to 2^702014-11-09RichD0NFno factor from 2^68 to 2^692013-11-16SMoffatNFno factor from 2^67 to 2^682013-10-12Cow_tippingNFno factor from 2^66 to 2^672012-05-30subgeniusNFno factor from 2^65 to 2^662010-09-23Torchwood InstituteNFno factor from 2^64 to 2^652010-05-18RichardNFno factor from 2^63 to 2^64