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 statusMnStatusDetails124891531Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1076000B2 = 1484096250 PRPStatusDateUserResidueShiftTypeBaseVerified2024-07-16Luke DurantE43C2A7CA4F71A97013 HistoryDateUserTypeResult2024-07-16Jon PaceCERTPRP CertificationCERT proof power = 9Proof certified good2024-07-16Luke DurantC-PRPE43C2A7CA4F71A97PRP proof power = 9PRP: VerifiedProof certified good2024-06-21Luke DurantNF-PM1B1=1076000, B2=14840962502022-07-10TheJudgerNFno factor from 2^76 to 2^772022-07-10TheJudgerNFno factor from 2^75 to 2^762022-07-10TheJudgerNFno factor from 2^74 to 2^752021-07-08SRBaseNFno factor from 2^73 to 2^742020-09-13tscNFno factor from 2^72 to 2^732015-09-18Andreas_TruetschNFno factor from 2^71 to 2^722015-09-06Andreas_TruetschNFno factor from 2^70 to 2^712015-07-02Judge HaleNFno factor from 2^69 to 2^702015-07-02Judge HaleNFno factor from 2^68 to 2^692015-07-02Judge HaleNFno factor from 2^67 to 2^682014-12-23modestholdingsNFno factor from 2^66 to 2^672012-09-07CorbyguyNFno factor from 2^65 to 2^662010-10-30Thomas StorkNFno factor from 2^64 to 2^652010-05-24Mr-PlonkNFno factor from 2^63 to 2^64