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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 #1100000009075279014 2,127 digits created 2026-08-11

Value

609121339694808652871831824931660396453925543728559853743147885718501536999844944618712150791171526339230271341611164577636671619564551310239952046963647395583899038943390075799954855278013637195549671039495117213172153223434413020560201662196777672357773478559543073680322516999285244077402811776021042685238899978266590155866402043768531493003777727481203717865814961908650851312113838603592311475775155614314775977866842613806223000724908157288367176306130287895575808958966432092221407024858460974999343071054620067583118725168114860064304335091182328562562926090312365643402714032621154798754857118055577583843966680865572318659702841908303600890688437539437783902997135897166668976160755969811582370797721591248316417382266699634439184737897706743210280528894584690641859205939003964984978582135313566150783014043018874609661606675777822165274690976850408097350972431196898039637740429524319043794545387859122437427478039244607986663709001251670367998616038213020995309879776994110974543001014701347882838058308185591434608365986336006871730472647966233838468392481161904492167325646851781648430281136854733527951043830738261337680170554053852556973712239225396116129846506083942088709559760068939987014660048675446822880192607917235223229306791118314111943716227606417442918865796731157477014310872330007344270873478388165396872983444325616279893246712226019449794711953140128976363734713365980775891342589298556708993158264625482627956394573068228858623991612930332736531145549280467738310047457341508625844425016640681268890559197809840353430955918586175272698554259975910997097791058476560790589544109832984230191801250867164338692369377825692792838311895826280676242607868527509782472531009393320245302585983057827714276271019433547274209184132515560128207688537689636283484420984264701932047548694341657034506336049960765866523744640149637827792583229938008787561015778669318094449162962182861673303803235539290635340675435867976371761714770752305355985308880285783105010564716570734109930058897040770437843068198333763814319703956895363673050419218831462233662165990630398757733101582906117412164343440094546632651
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 2,656-digit prime (204 intermediate primes).

Certified number2,656-digit prime
Certificatedownload
Certificate chainshow step 42 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075279014 --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":1100000009075279014},"decimal":true,"detail":2}}'