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 statusMnStatusDetails136947931Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 671000B2 = 31165260 PRPStatusDateUserResidueShiftTypeBaseVerified2024-10-16Luke Durant5E4EF7CDF5D54C32013 HistoryDateUserTypeResult2024-10-17George WoltmanCERTPRP CertificationCERT proof power = 9Proof certified good2024-10-16Luke DurantC-PRP5E4EF7CDF5D54C32PRP proof power = 9PRP: VerifiedProof certified good2024-09-14Ryan PropperNF-PM1B1=671000, B2=311652602024-07-13Luke DurantNFno factor from 2^76 to 2^772024-07-11Luke DurantNFno factor from 2^75 to 2^762023-01-18SRBaseNFno factor from 2^74 to 2^752021-07-31SRBaseNFno factor from 2^73 to 2^742020-10-22SRBaseNFno factor from 2^72 to 2^732016-08-31Scott BennettNFno factor from 2^71 to 2^722016-02-13dbaughNFno factor from 2^70 to 2^712016-02-06La GüiraNFno factor from 2^69 to 2^702016-02-06La GüiraNFno factor from 2^68 to 2^692016-02-06La GüiraNFno factor from 2^67 to 2^682015-02-03firereddNFno factor from 2^66 to 2^672012-11-15RichardNFno factor from 2^65 to 2^662010-11-29Torchwood InstituteNFno factor from 2^64 to 2^652010-06-10Charles A. MorrisNFno factor from 2^63 to 2^64