factordbrpc · fdb
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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 #1100000009054507146 2,537 digits created 2026-08-07

Value

28109188281986699325244994911480973188030485378205497290956906080854885043699978866808149841342708131932258874056538621626266943133064242629166963256244471493419595439517830697648319758860215388385853766392521081953538304124669763069532664476072461761446773628602026672756476770514039399079379102701426786453389523838487721434590352947515160727333725514456313085746334526878609409064718565595567020876932342934155369323431459020470014351624363286202807209858571342503582572881283897212391410932635894042733838679661837399343292335595924023494255763546049402491598361332695119580296515903078808498183512914823831238122705506990554332264606966703049709970109338640764945005777887659479400722440848806934302058502059307824233374516675450106701172856318438995986240224708833914076987291529147930893075632362821039941871323397974559942587912536048908538426885472233156714502401079873712529899739720491964175864446654432857185821362802970888507866232376980574365276905350104953055573030629358166516941118755383708656859364777987288570645366392268977009361101306763135615091440715441126799812612456219437239422894536561422095334441520681142588304216346217971812403611034813748284699684543429295295963236013396718551068126820606032564920094046633425289089165649972860567738894186852181289637979647261627619859627100739612758334039594969952533765546740409637153104911522909738209756414542851022960575946627390500344949231352643732114691415622684764174295541237566060377088406921913192444020732414091743464434880176361754346580934562333348053225904379992953838254511558733419566084846489022732080070485055997739192170924916762959679568062818333363111807262590350787053629554032342313096010360870128558561859304911326790041253156430340694299437266776107562101393984617542461988966257681446374183341023919944220887394997912329314316374627311441958182185353944764133411843850034386422597518567457986936278859882963846429414921156389029584765459782622152010915760264627537055097776604078559030896504591571958961848462240623326572623133395787764024057573974050654777618419187119034980554182092553971593867308916804212650491113231438115096527239307506863624954849445447422511932099844517033380750814120821683510126184153462646940294092524011227567723281960607918352905757435127191466312524982312797684785774500685486588176790239726928997796037170596418236325964559886506835377816751609926823746815594282469525848902199084128786631971422115007486609053092586900458265025398716299077722157036871617640297859145350737431893768178932457740197588608124694827
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,582-digit prime (187 intermediate primes).

Certified number2,582-digit prime
Certificatedownload
Certificate chainshow step 4 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054507146 --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":1100000009054507146},"decimal":true,"detail":2}}'