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 statusMnStatusDetails112797101Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 4500000B2 = 135000000 PRPStatusDateUserResidueShiftTypeBaseVerified2021-11-26Paul Underwood0CA5033BB6BDF392013 HistoryDateUserTypeResult2021-11-26Stefan G HoffmannCERTPRP CertificationCERT proof power = 8Proof certified good2021-11-26Paul UnderwoodC-PRP0CA5033BB6BDF392PRP proof power = 8PRP: VerifiedProof certified good2021-11-19Paul UnderwoodNF-PM1B1=4500000, B2=1350000002020-12-29arpcarNFno factor from 2^76 to 2^772020-11-29arpcarNFno factor from 2^75 to 2^762020-11-26arpcarNFno factor from 2^74 to 2^752020-07-26Daniil TsarkovNFno factor from 2^73 to 2^742020-04-21SRBaseNFno factor from 2^72 to 2^732015-03-05SWL551NFno factor from 2^71 to 2^722015-03-05SWL551NFno factor from 2^70 to 2^712015-03-01La GüiraNFno factor from 2^69 to 2^702015-02-18Preben SNFno factor from 2^68 to 2^692015-02-11Preben SNFno factor from 2^67 to 2^682013-10-10Balazs HegyiNFno factor from 2^66 to 2^672012-06-03carlos56NFno factor from 2^65 to 2^662010-09-26oilwarzonedotcomNFno factor from 2^64 to 2^652010-05-052knarfNFno factor from 2^63 to 2^64