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 statusMnStatusDetails126839443Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1142000B2 = 2174393130 PRPStatusDateUserResidueShiftTypeBaseVerified2024-08-12Luke Durant9B137DDE4E3B30112565291813 HistoryDateUserTypeResult2024-08-12nklCERTPRP CertificationCERT proof power = 8Proof certified good2024-08-12Luke DurantC-PRP9B137DDE4E3B3011PRP proof power = 8PRP: VerifiedProof certified good2024-07-12Luke DurantNF-PM1B1=1142000, B2=21743931302024-06-25GregNFno factor from 2^70 to 2^712022-08-02TheJudgerNFno factor from 2^76 to 2^772022-08-02TheJudgerNFno factor from 2^75 to 2^762022-08-02TheJudgerNFno factor from 2^74 to 2^752021-07-11SRBaseNFno factor from 2^73 to 2^742020-11-14SRBaseNFno factor from 2^72 to 2^732016-05-06Smok_bmv NFno factor from 2^71 to 2^722015-10-31JakeWNFno factor from 2^70 to 2^712015-10-16SourceBinary.comNFno factor from 2^69 to 2^702015-09-06el groccoNFno factor from 2^68 to 2^692015-08-17Judge HaleNFno factor from 2^67 to 2^682015-01-12RichardNFno factor from 2^66 to 2^672012-09-24RichardNFno factor from 2^65 to 2^662010-11-04Charles A. MorrisNFno factor from 2^64 to 2^652010-05-28RichardNFno factor from 2^63 to 2^64