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 statusMnStatusDetails114547267Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 523000B2 = 19717000 PRPStatusDateUserResidueShiftTypeBaseVerified2023-05-27ANONYMOUS1C5C5DB4A1BDC81F7413600013 HistoryDateUserTypeResult2023-05-27Jonathan WebbCERTPRP CertificationCERT proof power = 8Proof certified good2023-05-27ANONYMOUSC-PRP1C5C5DB4A1BDC81FPRP proof power = 8PRP: VerifiedProof certified good2022-04-11Ryan PropperNF-PM1B1=523000, B2=197170002021-06-17arpcarNFno factor from 2^76 to 2^772021-02-03KrieselNFno factor from 2^75 to 2^762020-10-29RNutterNFno factor from 2^74 to 2^752020-10-16buteraNFno factor from 2^73 to 2^742020-04-24SRBaseNFno factor from 2^72 to 2^732019-01-10Niels_Mache_NextcloudNFno factor from 2^71 to 2^722015-04-03korvaNFno factor from 2^70 to 2^712015-03-24-Anonymous-NFno factor from 2^69 to 2^702015-03-24BronzemanNFno factor from 2^68 to 2^692015-03-23g0bNFno factor from 2^67 to 2^682014-11-20tscNFno factor from 2^66 to 2^672012-06-13sasaki3NFno factor from 2^65 to 2^662010-10-05lindeeNFno factor from 2^64 to 2^652010-05-06carlos56NFno factor from 2^63 to 2^64