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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 #1100000009132755981 2,076 digits created 2026-09-03

Value

296200030475871931286658827826815182795865110604432065159155915154946989836129168700349912834108552716797257957179062304420620155530653565687781263911663964797190368980176172071755927765693853673478370420835677739557763478416286060742720139106613513922925031472479834442205565334044936710328317602897419974928679704110707264432120886901474874277062290983358370312256042750789276423149364747781274177701943710614128744230498900742718195751192951325717503563890974021569833894191023496351593617658929917468315826537052153192578622097059314683531160960284905951945278199110089702400906380220726037910539364892051858821908447824155930210783086822680131462912285679004026470973612306442948013602833984795122315960176665377391901753609730140261235877873283484540474370133705439598337988145213005133067694974982899605248985807982345152657710431161886600270064542496987701082524865501118131417682757031894076725602375490214664979911135488309829702962947928485384950413689956523458271820809310677107346850748116115213049155485526092224761401663087474022640134513461621471039872229610874334334766205104298365192626406922866354122121369972691658608712038386378500835084702241288359114775147091293427846446518236365762752825152981542243677278279086269830356250979513103519001580976218490265886996876503141914770185376615392850612765436627703633555388736035435346846088015919107954305392082671826785598284160179023611444491455961259916351244025071405343141665351357403771572586017547752374001438221245231225346404712022301216904487924884401475725429465134435179578629023710084313778156685755154336026851353048979497963664939711291595631177008635650278485330489014821231999913775133552811698582182285724666031578548140377146714452415010271589785224269038925999070361793663442629886316132314998950812961892204193719093089896884283790996987443047368659408729938433462228852515326782655850667313409899255524953508754198256460729387683981370330230381988312045287589211397093895341855648222310718531925954888090505553426531722674308705677831457019394754585463555268004753388341964852122781173827
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 3,186-digit prime (307 intermediate primes).

Certified number3,186-digit prime
Certificatedownload
Certificate chainshow step 98 of 307

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009132755981 --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":1100000009132755981},"decimal":true,"detail":2}}'