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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 #1100000009057729157 1,582 digits created 2026-08-08

Value

2008666875213397894241797445474180628615212004083549689739668015688362854371204040227218161417733799247524649126616851481619496174895924616254410518949222269530300427218540764637260337248843654164003465919976179796324935271024295601611517889014234327271937547166497377129955815921515648452679582694664980590417527794658673100057385319742699283679975112774562886526534997094495489385583123871113667145245505143717147964983056007322791028427966498603209484093677668972246577204123697178957980623388140935185450497365250683052693262222410660361122430362910392763628551103443173619653558734151177582626696531878620173332060183117830709844940779900820181643659066763990152931252737316406003959567474368958000831201883027015657410770352341844907264830407981754438048322939791822330144400888505251123410416336425565322407368042911941797719606212737772348734635717564037975402930577486344719912214646271505905771037255838103694866104897468811251325250341277725720918669857376782877333173876495909646273030494120457792991828744372236241304746481632785082945040797453366256699850057136586482638465532240606126684237008248184114061231510604214526162206441885371516794921074594863282585143953552799720645248746159389837261617296291082716654829222845817166393897920566591854388364136515536423237465022790669588737521678114818204869984056362221768015497045258155380218233945654642914936080189559684509601374834736579922407927805852094512105702295158912253085324260957405090692590800726650561219110049329807306042835154053901819286108049960850683149627870781012536260364759755898361912694638515817
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,672-digit prime (139 intermediate primes).

Certified number1,672-digit prime
Certificatedownload
Certificate chainshow step 8 of 139

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057729157 --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":1100000009057729157},"decimal":true,"detail":2}}'