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 statusMnStatusDetails111868121Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 511000B2 = 19256000 PRPStatusDateUserResidueShiftTypeBaseVerified2023-04-10George Woltman0958F203538CE351013 HistoryDateUserTypeResult2023-04-12PEDCERTPRP CertificationCERT proof power = 8Proof certified good2023-04-10George WoltmanC-PRP0958F203538CE351PRP proof power = 8PRP: VerifiedProof certified good2022-03-24Ryan PropperNF-PM1B1=511000, B2=192560002021-01-14arpcarNFno factor from 2^76 to 2^772020-12-07arpcarNFno factor from 2^75 to 2^762020-11-20laxeyeNFno factor from 2^74 to 2^752020-06-08Dylan DelgadoNFno factor from 2^73 to 2^742020-04-21SRBaseNFno factor from 2^72 to 2^732019-01-09Niels_Mache_NextcloudNFno factor from 2^71 to 2^722015-09-13PascalBieriNFno factor from 2^70 to 2^712014-11-17SMoffatNFno factor from 2^69 to 2^702013-11-03SMoffatNFno factor from 2^68 to 2^692013-10-14KeldorNFno factor from 2^67 to 2^682013-10-09NesowaNFno factor from 2^66 to 2^672012-05-31Torchwood InstituteNFno factor from 2^65 to 2^662010-09-23sasaki3NFno factor from 2^64 to 2^652010-05-20RichardNFno factor from 2^63 to 2^64