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 statusMnStatusDetails101212889Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 1000000B2 = 30000000 PRPStatusDateUserResidueShiftTypeBaseVerified2020-12-01George Woltman3123788697D09697013 HistoryDateUserTypeResult2020-12-02Franklin WebberCERTPRP CertificationCERT proof power = 8Proof certified good2020-12-01George WoltmanC-PRP3123788697D09697PRP proof power = 8PRP: VerifiedProof certified good2020-11-29George WoltmanNF-PM1B1=1000000, B2=300000002020-09-28Jon PaceNFno factor from 2^76 to 2^772020-09-28Jon PaceNFno factor from 2^75 to 2^762020-09-28Jon PaceNFno factor from 2^74 to 2^752020-03-21Hans LoeblichNFno factor from 2^73 to 2^742020-03-14el groccoNFno factor from 2^72 to 2^732015-01-09shaugeNFno factor from 2^71 to 2^722014-06-10qwertyuio999NFno factor from 2^70 to 2^712014-06-03SatanNFno factor from 2^69 to 2^702014-06-03SatanNFno factor from 2^68 to 2^692014-06-03SatanNFno factor from 2^66 to 2^682011-09-15riccardo ubertiNFno factor from 2^65 to 2^662010-08-26RichardNFno factor from 2^64 to 2^652010-03-211997rj7NFno factor from 2^63 to 2^64