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 statusMnStatusDetails130080287Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1134000B2 = 1561341600 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-02Luke Durant3B0EE8C4C7D4FF56013 HistoryDateUserTypeResult2024-09-02Jim DonovanCERTPRP CertificationCERT proof power = 9Proof certified good2024-09-02Luke DurantC-PRP3B0EE8C4C7D4FF56PRP proof power = 9PRP: VerifiedProof certified good2024-08-08Luke DurantNF-PM1B1=1134000, B2=15613416002024-06-24Naegi MakotoNFno factor from 2^69 to 2^702023-05-23ZbiGNFno factor from 2^76 to 2^772023-05-19tscNFno factor from 2^75 to 2^762022-11-15ViliamFNFno factor from 2^74 to 2^752021-07-16SRBaseNFno factor from 2^73 to 2^742020-10-22SRBaseNFno factor from 2^72 to 2^732016-11-15arnaudNFno factor from 2^71 to 2^722016-11-14proxy2222NFno factor from 2^70 to 2^712016-06-15YxinityNFno factor from 2^69 to 2^702016-05-04DerekNFno factor from 2^68 to 2^692016-04-30ANONYMOUSNFno factor from 2^67 to 2^682015-01-16karhuNFno factor from 2^66 to 2^672012-10-09subgeniusNFno factor from 2^65 to 2^662010-11-11sasaki3NFno factor from 2^64 to 2^652010-05-31rabbutNFno factor from 2^63 to 2^64