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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 #1100000009055229664 1,981 digits created 2026-08-08

Value

8740852133487871209391550585602811080144336329110794258019978693254526289531845028952813722620641153930537363658902380464397699849054402585586769252943032011985654909024855992598098985305467914276263426409089500524656583945142115015659275396176271754591174622961772773660673395902944032584844401365601423559535807650188598389534080114338977023058968669161467962901488887423323855723689291196502767275759653876363352706751468863865969732680149790755160672682223480331406895042982932845265115276135565143814930362051056773764694012159037185533049208451527513652222700224102767313369135074730688559891667521052083011225455462693838327971406713307716087079149363946870494791123024553654008655684953667156638856834749522585620676858492315989878637566119169193388951061249460579724727941020715517848464265998037891329386280846121867453397658670202840099161637508853523071540177826153773968917633228013974901732664725593913940715300381794436292667464983081677254419574650512982773681811750747529388113169002608048407728269755001538809773682990310227804102743701723855384949852881012557360055816581386727039192982180898860682318324053335659059004061674503553591755520920572017179785159785418553938886722748007439561775865256541942566706029717314240893223657143058174975754758403758128381552624827028436429987053497373758295521136572927524234971654088526125072050496960195980143649424076874294670757439589843251950634337505683089536474310659355670459288481727837182203487175640243220258564556057710188341360361279831782177471172899677926475768940661146580672557472357829950680363645766367995092474674116729037519867142538650212392243550614845716316057562017213924737842863642503557554255616401112249619140194771973404079186180930865756477092963445210890208109152215145784705887810976884415635582537712608221783261493130397902333445046268032980124197353820263214145617139074800121382978101411264449230207793524635129044363474238934836755819650129533502429884474418538871391684406004654228487
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 2,319-digit prime (169 intermediate primes).

Certified number2,319-digit prime
Certificatedownload
Certificate chainshow step 26 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055229664 --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":1100000009055229664},"decimal":true,"detail":2}}'