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 statusMnStatusDetails160276453Composite: proven not-prime with PRP test TFNo factors below 280TF target 278 P-1B1 = 5000000B2 = 150000000 PRPStatusDateUserResidueShiftTypeBaseVerified2020-11-12Roland ClarksonB2263F63C3168490013 HistoryDateUserTypeResult2020-11-12tolosCERTPRP CertificationCERT proof power = 8Proof certified good2020-11-12Roland ClarksonC-PRPB2263F63C3168490PRP proof power = 8PRP: VerifiedProof certified good2020-11-06Roland ClarksonNF-PM1B1=5000000, B2=150000000, E=62020-11-04Roland ClarksonNFno factor from 2^79 to 2^802020-11-04Roland ClarksonNFno factor from 2^78 to 2^792020-11-04Roland ClarksonNFno factor from 2^77 to 2^782020-11-04Roland ClarksonNFno factor from 2^76 to 2^772020-11-04Roland ClarksonNFno factor from 2^75 to 2^762020-11-04Roland ClarksonNFno factor from 2^74 to 2^752020-11-04Roland ClarksonNFno factor from 2^73 to 2^742020-11-04Roland ClarksonNFno factor from 2^72 to 2^732020-11-04Roland ClarksonNFno factor from 2^71 to 2^722020-11-04Roland ClarksonNFno factor from 2^70 to 2^712020-11-04Roland ClarksonNFno factor from 2^69 to 2^702020-11-04Roland ClarksonNFno factor from 2^68 to 2^692020-11-04Roland ClarksonNFno factor from 2^1 to 2^682017-12-10TheGazManNFno factor from 2^72 to 2^732017-11-24TheGazManNFno factor from 2^71 to 2^722017-11-20TheGazManNFno factor from 2^70 to 2^712016-08-10Adam BuranNFno factor from 2^68 to 2^702016-03-02XZTNFno factor from 2^67 to 2^682015-05-10RichardNFno factor from 2^66 to 2^672013-02-22MucolNFno factor from 2^65 to 2^662011-02-02AliNFno factor from 2^64 to 2^652010-06-29Charles A. MorrisNFno factor from 2^63 to 2^64