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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 #1100000009062570529 2,581 digits created 2026-08-09

Value

1338777507185522850287972654761513026855063324338230785886778595946353314014003287090091235289001371035143555481511936564480225694951970879036037825974395092517706454503539080280241496027791086745507075318867537428972288972165188647828608282651490600712707951796134477839651865742171799996902144248593377883923339832748369959459954063620935959344617584933906371644595449619200615489767860630648607125546201882961057611672825545528658022557831897869718352695279229997422151038625434186532716203660633416491879251390023330672027448782599998576326123217113790062660996720853438008848251475601294628642222556042089569434990246505941734501612204112321091881681065226821135269699536320220106282491900125042572247996220416368882036886359219360522956630501868169260531841033915103186457214544769609357787631569551628220131395980242397213002259309879287380773900539148260421430343242916194388860878209321199726135227624699559476560138109658007374175564201166043925862944487708107005430854709215920871117671620065946592148931732362837700287555215647066028730402134717265798971553107158025538931797119064234105090864592895994305632574255078858922498156590534123419806197775366848738517004820307264318181329543186188983256676491397090801780254492473642447561485292174052942973740510697063022721665299673855791521931485482767617058732027145727872336042325231933519039629941633550991618695990497714294569997492512837569042349075608258103875494874108504692555365221368928295440846151848147306479589764507692255497231286045841862131423961499195945332983571285992757099986314954692578746422156072420111052712751882947838346975297941263564802328509390706728780647256596298512804710006146291762811336682893872624662623854398817545312570988837788436904516476329503677022981798699921997699545994675377993899055332826136904438262294333289395248423523488356013844449025258519558981578812726674240163836912484746412756484067589191706416753228699242770295193463010950396745088512571682776532763481315172208095029158881628479952438512206519555478018814851151045236279251120587101929413024515286767910757000184279609947575250769299320553449918297584832902064629019369260534539423954801459795407452334428525906826447176771906744564423388285912874237722878167741795704592526964727162881222102823307505835811213106313185191276423157189486573153605535377461837452959552668401342078567135771809174639524259161332865773331714165222081349336935048767497742414193002356702734417351599432387027124870839968665162136454023721121144075047772590775355781346558097587706322295017494592971002512394948916418365033894992059
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,621-digit prime (191 intermediate primes).

Certified number2,621-digit prime
Certificatedownload
Certificate chainshow step 4 of 191

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009062570529 --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":1100000009062570529},"decimal":true,"detail":2}}'