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 statusMnStatusDetails118847497Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 647000B2 = 52561470 PRPStatusDateUserResidueShiftTypeBaseVerified2024-03-23ky0urakuA385F155D5815E4F5295315313 HistoryDateUserTypeResult2024-05-06GregNFno factor from 2^71 to 2^722024-03-24ANONYMOUSCERTPRP CertificationCERT proof power = 9Proof certified good2024-03-23ky0urakuC-PRPA385F155D5815E4FPRP proof power = 9PRP: VerifiedProof certified good2024-02-10firejugglerNF-PM1B1=647000, B2=525614702021-12-29voidfNFno factor from 2^76 to 2^772021-06-21KrieselNFno factor from 2^75 to 2^762021-05-15hktNFno factor from 2^74 to 2^752019-06-01Niels_Mache_NextcloudNFno factor from 2^73 to 2^742017-11-12snme2pm1NFno factor from 2^72 to 2^732015-07-15Josh FamestadNFno factor from 2^71 to 2^722015-03-02snme2pm1NFno factor from 2^70 to 2^712014-09-26snme2pm1NFno factor from 2^69 to 2^702014-09-26snme2pm1NFno factor from 2^68 to 2^692014-07-10snme2pm1NFno factor from 2^67 to 2^682014-06-19snme2pm1NFno factor from 2^66 to 2^672012-07-25RichardNFno factor from 2^65 to 2^662010-10-15Charles A. MorrisNFno factor from 2^64 to 2^652010-05-14Torchwood InstituteNFno factor from 2^63 to 2^64