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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 #1100000009057485571 2,159 digits created 2026-08-08

Value

11239051461434261838960752703336460781007727800788197414305664691456366229548619645385082927163269707236658922094567657210065354203497569792726396843715680681115967499310859296768232910283056680624684548873637179125760084804166032893871300192536044994251338009257450694001809941680990396546747216413488812247385149818104867267531288216100067816681059904326661907191600232578254866498354715054596674629534873122899733726572574654828115273873296906679849331079827939671146633395847039833481353552306154338111348665002140057627334996366524079611929837894423092389213854264287376046951740143293672346585587050295098518448871202700678877374841408275096407962333659038291313516113008838903453001958515078499855097084762997500739349631738523152374429572296068263809927526783634785114574656242492852300815421680611855182718049724491831487576672502195679298934738257592138469713877964405060850673559446656621464040224498595570077891563423622938397301454869862614882800104633755152002525969284229844070267118712711522417571224887581631265909505184112982136532478277675516003355211747634968273068306806125677875392709157080408426329683745237757465470760560222790065630973444840280855095473418312896080363598539843364000804909493784756102721251977667296904383269371709667762786389472616917393108006300274526715811046214774100051654016128953465474113233652872869982120017551937437659163499274535840223341357333275826888715817697058567349331363133585206640987194861446515163888453835839412354068053128440951825781611785073392323078030954453022254938957767166731622900683669580420776391141398523240974137256434581457685979696216356396144280726206695723615960246550258430110432263135677681485091955801210297972472427169842565669271405673691709975505737856276209918159642946024402564619368661615999492299230399525921926596758312226939146689165031303494538232701418493405471560392388621972848021441301568457821937065695768524000745998680530407769393099834902491580427428834390410498555925887511568855816491522131669849389996787262598539512923845200659410466699538381075446050024561416118200612241105717458660259744734432937433569930313350516981243758304046922433139257091658081
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 16 of the certificate chain of a 2,354-digit prime (176 intermediate primes).

Certified number2,354-digit prime
Certificatedownload
Certificate chainshow step 16 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057485571 --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":1100000009057485571},"decimal":true,"detail":2}}'