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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 #1100000009126644213 2,310 digits created 2026-09-01

Value

863526629940492450352486754145631156183480434048459880554656854309545266470953221521412908543545702962940236701831035405779732623004628237409450306054881330038785490746982290645196125135676646573327660647109669451876065354626334925871086691699594880620895679139605764294818993813433912592783267004451873920211189815935268232464943790981708614577414593696336760041698054715967337600487030003294626154505501372454121915007520579517534256259530888833078789630404261008449021432989732645671684069263926856285301564530595197278770581564014610091589061851268605824590384694610635992739587227418899203340921449405836108059920453991211024889258616393613625584226851284529941564331408886680239449791214700910618054378948141469842169874557876941115917066219009534890461329817830156690475453542793239356535079986890620266878612495322531978533266108728302685373047763078899525906867173255538568489693859122683014087705113272142510500230980695243988720964230321405238071941151301504555478325592126933823842767813960439165766445280772745726832529285105206759781214749529926202684239625861426444608137233384216070985625438154520695285565645911300575876780980853849141763482384743328207749235266418274968874870569903869411653914215946582997978085944972045284451054830325815016986681355750661665323928833623880547590315043775804315858375767788243191666290680635587788677228941607391907874455055080916042599511598627012272489641570356630678432785385973643956860398705469361923027910965881674112014402039779081235443353612693046446131338716420830680354002415749571593594146264889794787515855360979431482717346394340509534228650840106825511270508932396761348076352929049087936698574709624633224782534834837230560495716940245893155281585455227183474191473341009009228364930329096113745323841203676011995866299473869676563343574231485265897089424542060905198960758227753063766158270676602392798403563626740522304819090972877961667062008665130301771942308844765138593330388830801679226754414785864790989885319023210590689271750103171765046705993265797732416967161752538365733717258065687379386741611129335596611394435918205782449036839217955200238274640060041828664215412391477051290480747996976848562210078945974016512129530795128540143619303126658341984102994168979530797893183893525959760861713139243728004082159910878285670084329
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 3,110-digit prime (313 intermediate primes).

Certified number3,110-digit prime
Certificatedownload
Certificate chainshow step 80 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126644213 --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":1100000009126644213},"decimal":true,"detail":2}}'