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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 #1100000009091972322 1,946 digits created 2026-08-18

Value

24647521916124073904729064831198806901823094436257497565898855166324812715939917031017469059408711155158634969517183068197170109977826745276254265968308478343672136398932914910456705413023519187883023094898245861919551723072304924576285575517798890568147914791253560440395778131425567824187047108219241380529261657756862673152855487778627060840698580651809395337035771109486197299241068567596729017257817694645363310351271394208736621213792810716546559307982537745391184386019023493721068954128001017140388331232433385897750317021768546049459339807913039693738279517750268465235156144313096839967626013139274842394938745482103703158701530496149961667410746273220592815883464764057993134013322407046437631381198803494997803236496599994786725743203470410423731894894323312127572104164786214151564314354495649955142503309170735386021085987860730955242940881432171040112921777458654697826951157946224512695580320521863411551243100885647041938085095442590358221559551936903702782892228534131289972353230241330426982278725517238068467011274257632278237897541924952468658740210386826950111651390280796802008559482136471882011459041753746555548758164627210749341456470894033996214215461885732585528330335601449377801907776829540560857393089082365597955483995461517010595398182346064517754475213436384310601886386248826216182574426931763284222873485779858724673035447165190092023108225683283508943110651146926979016396731907801415103277812972671722037911632708893924930374090695033655937062932267691140111801122639522974531519159920987218964759972362798373959994049659497009629278767088808657674916803417135800403338468138567559506859954814611740048395555791011822218967454476448424254324461307667680619244254131679691973095796982117081089525347788470275400019207762988902046746837658254637652690512165970151222273273381958083851812975282319875116308699675179665528694541665332340050982842510964833762848155805154444647632468714661717780685033107294558901
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 12 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972322 --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":1100000009091972322},"decimal":true,"detail":2}}'