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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 #1100000009054270215 2,267 digits created 2026-08-07

Value

17944765720826780439402653159906312576136863482993080640076170292426610025629565626765880996310880955975951421968787154211413146849760864582988670449551797115142460725813101145542409930574251787292258977533310875888130732725149290627543444835424440346517130000174349481545335571211010018430216184383242472961069397288461974103501249176640033615579039473834537429817556664660947869529120125351010706449613531340040426148258665405177773184131557613766553445829350214013387096950383967628152502753699062309240686037121397865041236884501389113707792281428401793357707824309153257754561263331404750421498343121800303260309358989183264726528238838604346883443553808291417747831219233650456004032252355599700129929854158508157798078229057448020852124488909707497210943370553384465354970700874068585119004849362856641513734015508784001609188999932098959938055864307508200863332183894590263775119955045770577974743471428337537534395444918285515554484810410306410683505478503635423200446269108015384053694966147036799163293089863825373954336107925274369325315970543269499074621539972889295170196994774964451575665522111206126486553015246865770806368419814381832755922705945322776726224876520360978543293632515682478602151439927621630438593765641283714810386471179621686568229122087294450960249386964111195726303544926172581718065773027533683331865157257298276621408656064137686744108976046739709776092881766753598682153798772609128357070757772454543335142191449964532626353145667689282775002760434994871545097789950248827727627611392251297918183486737094161820458276668182578748514379372182468865229208145234170838890542837677050516675856547530218986676928620006288949075767853982478353288261053376469073283161391469100251218261306518570705877677612919399555740405797676074085801035313568712958276785256666376313834291318277923645925145151944023150955965065424909586539497458950500688676731649536872119780370775642077098017001191018855565750413737234974930898032384245838045994689596301800319834443208771974963757797892326660671799358236076542978877796326818923287944083508403248056992358597774813337331982191587710912057684781283795884996514657860257695850179589207134013234611703347301171596536911766415096167870155511887808396836780062305813113387400369021219422988181857683
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 2,580-digit prime (189 intermediate primes).

Certified number2,580-digit prime
Certificatedownload
Certificate chainshow step 26 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054270215 --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":1100000009054270215},"decimal":true,"detail":2}}'