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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 #1100000009126951304 2,286 digits created 2026-09-01

Value

227511607134600396903289871416678298010969422356974235132203602107817759181895720113881780570903164263914157619706872520685666994613294656674675036652007372577500607762740597597606088943066028755775240473360287909877444940282378448995508747770739241894599754116184919908855237031901903219813424301359575602847736449385888963188781084598144993243812436262641222076839337234819022480687293153262818741357406236306570645069678683009672101412971083217166933389388335033564739353239369838607284786014936287902441987989637078418225354696508553104939669442151077259306871708948396754946590219360590949215506187985574414445510102010032375223177200603888038609465180408336136738187701130071554766574691237156642415747166259489269389029419720026024955608199681670530466367450405647217689019186676413874025364250408895001005895825209189878824187993384078707920439439384501907354017693160966929648219961776098961499235875745425328360354796716413094080200743874002972675872398027232794297217092238622125058594077410324586003048682088541569172325900209635094164003900127734788749777666694010987339944390313748025721962373335426880138596213137516172783788879922658222699605466006567423823091475481599100011721305986112730905550913237698387759588128340328117291656264666020665485625765098488184287349818863365354533424487343204223338084033191266316073314416196915436487496894445670155092379683006244983413949282669721604052047419422088532193687066846304468711628170712757464873945242347394720612039154854947897229354770079683715875372719811233381950078393092407678231461712725796038818533508632649909648869192666689851375859598072569923824378118637959281806520516280587814311337131366478859521745502965194929322091258760207264258023630267122126000049618312629440789767148651526009399386174958300676315541100082451927611068043741019009032275131326826080301421234322468233701650444516143932626012900862340419097585330294379619148501317355975685371999148191607147168146783340939668726775249100320619664254478368021426627509416514223188057635922666336891723757556619398298630893687781861126239154872623748527029198701426567283278980454945270613699465165396375054283476083578643288814161948805481605772839774725933590446609732283838960932824179835244306769530929131771002888452005698655134408331673077314801
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 78 of the certificate chain of a 3,117-digit prime (302 intermediate primes).

Certified number3,117-digit prime
Certificatedownload
Certificate chainshow step 78 of 302

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126951304 --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":1100000009126951304},"decimal":true,"detail":2}}'