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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009080477840 1,855 digits created 2026-08-13

Value

1726062850749493066636210981150624554011479230406299312354931422552440462401129699393172471284358441851845557363819838559890217254112914386354152589598008166294885535041809206810492189725071438118094034825150651755365884057502046893440693772186107551743451710797348053320108349072468554579037913930027659022293966174125003858140836436971253539472010078636731412949508892467158888501947921468699356600283295654702129816841328629570264355121673389880174282526243237851937501719243351764544311250851994686074920008302030394005535843674784625811842563103532433538608040297458432308318360351526541993999885564324152562851612912679715666729438475120620228410928856548833726404523414363252745321276494995747736946276611871520293429091076102771519752559770375565703785090117164502187131856256847112799356894685365696132048765901106680220634677736849221846524306701502685307418233531540186111263618492689522048353795194843571950196389238287159920022902359802424908897836141924475335426121338298450497788160013735732913110875408343756446843424811749872208023532770863029525167644621987366675243664178190390199832230312837672587270406510668313469571762990719841831608223359330458310690552080236312519771518884267436693353457901676249638726201870939239580493242560773340826024545671985653861138212916606322997021513934050236604124418861793811150988789445479494921002469985725792241084171665004150039350680345974671977447820895429907652884366664228200485652678830452921024121947583678028403243054811546063539819410763369743159352425145207165658693446804873798025376534358895449574082367910745157743857486501901609368977695215474486623272846462872396250221239983860285643295525408577928785043339727824449769754155801798857763613749191463059734853106200776491872782060992249479051512989740082258267767758619800174135024034996045878314538385338035761649938700134468424743
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,923-digit prime (151 intermediate primes).

Certified number1,923-digit prime
Certificatedownload
Certificate chainshow step 8 of 151

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080477840 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009080477840},"decimal":true,"detail":2}}'