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 statusMnStatusDetails112718689Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 514000B2 = 19009000 PRPStatusDateUserResidueShiftTypeBaseVerified2022-06-15Ruslan Borisov3EC3D7B354792A526446808313 HistoryDateUserTypeResult2022-06-15S147127CERTPRP CertificationCERT proof power = 10Proof certified good2022-06-15Ruslan BorisovC-PRP3EC3D7B354792A52PRP proof power = 10PRP: VerifiedProof certified good2022-03-27Ryan PropperNF-PM1B1=514000, B2=190090002020-12-29arpcarNFno factor from 2^76 to 2^772020-12-04arpcarNFno factor from 2^75 to 2^762020-11-28arpcarNFno factor from 2^74 to 2^752020-07-24burkhajoNFno factor from 2^73 to 2^742020-04-21SRBaseNFno factor from 2^72 to 2^732019-01-12Niels_Mache_NextcloudNFno factor from 2^71 to 2^722015-02-15JakeWNFno factor from 2^70 to 2^712015-02-07JakeWNFno factor from 2^69 to 2^702014-11-18RichD0NFno factor from 2^68 to 2^692013-10-12ANONYMOUSNFno factor from 2^67 to 2^682013-10-11SMoffatNFno factor from 2^66 to 2^672012-06-02Torchwood InstituteNFno factor from 2^65 to 2^662010-09-26vapaddyNFno factor from 2^64 to 2^652010-05-05csabaNFno factor from 2^63 to 2^64