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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 #1100000009112352690 1,574 digits created 2026-08-26

Value

19677443646128381785112310024009639812368310999419244262887639051054635396971075690841776192109475189155381160408868018183159212293923522768319820814249282777984274143247961487271802238199486665293810038556890065510864406045734197405362719432057760234134722520799349864883167944575966343867265436365021442930262017289293879350699752199339642467950114273882065283456888154210152864638317599048036819543794842932164357124493005506408874813498063048499233378197163793468603399480180737351609708407953724527579469483541713363829771570876901860638385614454546350141164934824051764695509798445892656822268144960792325431321014774324814171006024546079790085554129723969506759600637078629807519392206911705851462793175433115864889822303275330391567094969951517098251587546874682455391329054598127937551079498474309104819072539385772728889913250306127049254253960404173095190898367926417003647659081415057587575408442646459920604365317917118578878607458589578907706139892408355305398762275900027968267005876928168391928392718093108071495635479268226475151593246782516350839989082530962095931448433350847331482318196910071353137833576526671170646904790991652018823383173159870781948204669542321735763830477110841933181836701019908842064494559659592004457803815419997470777396301610528151172877604483358799197306837786529588296744625844835840821360514573068848206816086582395042820291970153770916829498263226612469835763397384337384635107718896031057750015396850141907967285964922512462308238798093729916976299493232735926684978920521450072923640978397246651108329382554841530960389099
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 2,004-digit prime (158 intermediate primes).

Certified number2,004-digit prime
Certificatedownload
Certificate chainshow step 38 of 158

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009112352690 --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":1100000009112352690},"decimal":true,"detail":2}}'