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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 #1100000009053828210 2,012 digits created 2026-08-07

Value

18891810986102438512320785626495600012661353116701146684309186729326132186418392486668708493417224615005549111591772939780574033300725776278501781064245988448750044716914883831418114616297300039735440325442896023090654253288106447992929984457826586279881647335117367330781479450507379616878773077108856568275003446133580973935038844582806843031185761581587618058514646683028448702156812651256569955905091183740584927366232316136396967001560358977517406871084584781645727902308221416800001682012015521527754992217446659214291292812469781801147458485036571709642630037441105557503797070085085208206100645781403392314218267878887936674237706081392130939861195059015566202425972354956558148312668148552704026803760503537165609539498172919494905095193681630201231647892224425497448034928280802461882717360430111775496206121537204245458569192747474471909347812645843620603453690376945645433576657866509035613766465188062780150485076872028490399080557961289449735824580393755388292823265308043696781394089885052165827484386775449653326832727787955449476532661798098857141884103448265289899207357287806281829157917057510074266391027881425387911201700493455955660705008090089250912305089520327691516752964888823327921808511773657815289718390366341578600019047966092656644005229032015169517051955375141004537000255127515626254663972110746583129248797740958908520234923633673800577874008336007895412609793188776336434725520886954938419919005945507076183088318947892949263204868133310298882991549050141811255121869590232344339836298499897223172126338193875366205200512289044872958854015498287061216664715920790368056632614351397921017271841605420110202021929316866915911080014396782903229483323686712838191738588779239630182782181591083998116293571185629785107721601664105633080701844251502568979918917950868692919308990866057206955188486413020520070030048303489737431403543511320886415394697547380494022873896893012068888187346703084564051510700050090105016364462289016832493818932987346268106175763800774324637866282043449
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 47 of the certificate chain of a 2,577-digit prime (194 intermediate primes).

Certified number2,577-digit prime
Certificatedownload
Certificate chainshow step 47 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053828210 --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":1100000009053828210},"decimal":true,"detail":2}}'