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 statusMnStatusDetails102357571Composite: proven not-prime with PRP test TFNo factors below 276TF target 276 P-1B1 = 850000B2 = 17000000 PRPStatusDateUserResidueShiftTypeBaseVerified2021-03-23Ben DeloBB662A14A4B644032772603313 HistoryDateUserTypeResult2021-03-24Stefan G HoffmannCERTPRP CertificationCERT proof power = 8Proof certified good2021-03-23Ben DeloC-PRPBB662A14A4B64403PRP proof power = 8PRP: VerifiedProof certified good2021-03-22chemdata.inNF-PM1B1=850000, B2=17000000, E=62020-11-061997rj7NFno factor from 2^75 to 2^762020-11-04lobsterfordinnerNFno factor from 2^74 to 2^752020-03-30SRBaseNFno factor from 2^73 to 2^742020-03-28SRBaseNFno factor from 2^72 to 2^732014-12-10shaugeNFno factor from 2^71 to 2^722014-07-16ITSNFno factor from 2^70 to 2^712014-07-10riegerNFno factor from 2^69 to 2^702014-05-01-Anonymous-NFno factor from 2^68 to 2^692014-04-29Klaus NordmannNFno factor from 2^67 to 2^682013-08-27RobishNFno factor from 2^66 to 2^672012-04-22ALSNFno factor from 2^65 to 2^662010-08-18-Anonymous-NFno factor from 2^64 to 2^652010-05-021997rj7NFno factor from 2^63 to 2^64