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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 #1100000009054543893 2,460 digits created 2026-08-07

Value

193120645102959501121769380508974243056447748820596837262549128639328175291686223370192107877230699221651923491316398019024924258025035819402934768452259710908684403608112379107099801025698705289043682077237894110220991664962015580625218954166831639796656447629083974589787569349486214590136033872940514313593712194295319476237127447758346597023695194044466425026230162937734168862393699573301845424537745304963766981356136602852662474072339403568190195881459414566125199241365121393061274817724111393795367064221054079983423251950645861706233686263664066010831869191154616280547547074091330177186389422684101021100789314207412212316227083345404629517490684768742416912286635997792556936400542557282071919677800967337654867149864553650168451903466286548844911460242468319301845247009525985090612318429049254654655623190489766707591441841853638500130779576186275231093689962415684198333248260375768129783279909345679125537787576873020165953772062046446364013706620346381861482197293354275261216894702143227989727101652003675325070171889844066498227509780325180431418846047804723266910497579906827509894713678569440005153251861640494675239556150696938719422992614503512988648141977277510761437353991733527142632740920382676823119572901654535389461876618395130108124114205093727074180560216539652183414207924105702999778420974989668907849993265037725801502400954860471751818723515171085470857427267052224076466366157207607181607718824086231260731216273134576248356897372055518540707271564939151276762921808018784051845445626035745764010058736249205676220031452853089405993532357536196686763044710082161508021690375261372240909186821459871441316492694844510240721039249667445311825164031940706378554243066762591570878178046378964384048273098603405413688033695191376011252218707881931618859457897081335689486568632734551579858985616177134319758096083130546835057710687764039817041783956101168104535910075661007525007473329832008945649094691279616967698709624666042730077236180802682079270591590941317158916122017718552214075186845537834217161621978479428121732175613339702064962740535003622454432070186119322771695676720740732635686079498600489886616956422753683503544546355451669168569894366521184010867343203780957479134607283186705124437688548511563545021182461012315506813282715128007334964040892008470500800434636587285530530299191333133804870019333916304905296651448518731280696072239629482860936820120596289349871599372709867709029274579181219919189248378729
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,519-digit prime (183 intermediate primes).

Certified number2,519-digit prime
Certificatedownload
Certificate chainshow step 4 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054543893 --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":1100000009054543893},"decimal":true,"detail":2}}'