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 statusMnStatusDetails112894913Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 515000B2 = 19038000 PRPStatusDateUserResidueShiftTypeBaseVerified2023-05-02Ruslan Borisov2C2B6093FA23EF514766826613 HistoryDateUserTypeResult2023-05-02Remi LucetCERTPRP CertificationCERT proof power = 10Proof certified good2023-05-02Ruslan BorisovC-PRP2C2B6093FA23EF51PRP proof power = 10PRP: VerifiedProof certified good2022-03-28Ryan PropperNF-PM1B1=515000, B2=190380002020-12-18arpcarNFno factor from 2^76 to 2^772020-12-11arpcarNFno factor from 2^75 to 2^762020-11-25arpcarNFno factor from 2^74 to 2^752020-08-31Johan ViljoenNFno factor from 2^73 to 2^742020-04-04tscNFno factor from 2^72 to 2^732015-04-18endless_mikeNFno factor from 2^71 to 2^722015-04-18endless_mikeNFno factor from 2^70 to 2^712015-04-18endless_mikeNFno factor from 2^69 to 2^702015-04-14arnaudNFno factor from 2^68 to 2^692015-04-13arnaudNFno factor from 2^67 to 2^682014-11-11ANONYMOUSNFno factor from 2^66 to 2^672012-06-10RichardNFno factor from 2^65 to 2^662010-09-28RichardNFno factor from 2^64 to 2^652010-05-05-Anonymous-NFno factor from 2^63 to 2^64