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 statusMnStatusDetails129337447Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1115000B2 = 1502428200 PRPStatusDateUserResidueShiftTypeBaseVerified2024-08-21Luke Durant8EAF8D677E4C48DF013 HistoryDateUserTypeResult2024-08-21Oliver KruseCERTPRP CertificationCERT proof power = 9Proof certified good2024-08-21Luke DurantC-PRP8EAF8D677E4C48DFPRP proof power = 9PRP: VerifiedProof certified good2024-08-02Luke DurantNF-PM1B1=1115000, B2=15024282002023-03-16Yves de WandelaarNFno factor from 2^76 to 2^772023-03-15Markus K.NFno factor from 2^75 to 2^762015-12-13endless_mikeNFno factor from 2^74 to 2^752015-12-13endless_mikeNFno factor from 2^73 to 2^742015-12-13endless_mikeNFno factor from 2^72 to 2^732015-12-13endless_mikeNFno factor from 2^71 to 2^722015-12-12SMoffatNFno factor from 2^70 to 2^712015-11-29SMoffatNFno factor from 2^69 to 2^702015-11-14Ivan DimitrijevicNFno factor from 2^68 to 2^692015-11-08ITSNFno factor from 2^67 to 2^682015-01-12tscNFno factor from 2^66 to 2^672012-10-04ALSNFno factor from 2^65 to 2^662010-11-10Thomas StorkNFno factor from 2^64 to 2^652010-07-30-Anonymous-NFno factor from 2^63 to 2^64