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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 #1100000009065128409 2,004 digits created 2026-08-09

Value

386454636113233011268773762867212539260927759295681659096788311333032312418402431980054726763935069590903389193611726070214074661540281402813762564047704550433001566818476369498715884995281249918670809968020037508332527161627492089182655252303085655071063776513796215940775458927108675003501305290681080766997937985207686310272838857857709417513269324517480260538794875269012561599303669666687720910147649734750487074090590367816746897210296457933820330536830636618452976170378160658619886114572745747026298228932772096033516062161001564248060177757041905488198710653186840393648668287787657816705640417723515754063136791777170006626326728134588302221262240127646522772115230021416888949091055748511257296253753770561771023057864234106178748949036924922527209152294740427547600116381127699139079151395433761289951160819569188019631035297030852116315583138847017804952782712406988644191770338067875676800627782215631769222260298186239946803204320421658342027961951735399457514274628682536458192813009861538851905630076970915791716164019197406130880747303891565012515818020108753115376319648406057282733429597964685459132306644543306042403852172263551984538516295424518187738236763412469042266092834163336695879024135364187520523840783069644716238096649293654776641479192649343737480956930535500385385171415770367226276486423158178382290098612310277832750761280616573853171969729512106602993704425156089936274001493644633425828003587987677890597921819299856794947556269602024247856694182293317623035850529658837748727530427805789559735849059618503621994447499928418783576981225498013717974466935316890783082293233199461529220149976461184765836324939369002835997432590902577138409268021883195635073269520251254679131203638386268406279984595003418585603815781329700320557667666382267839393498086705538657042854231984811957820832642311287553652563401725031860172668719984185178618632558501074533670689402766251326375655014019881572791564636784008794779887574701734214634322958313601333619734871255885706085633
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 2,485-digit prime (189 intermediate primes).

Certified number2,485-digit prime
Certificatedownload
Certificate chainshow step 36 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009065128409 --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":1100000009065128409},"decimal":true,"detail":2}}'