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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 #1100000009057950403 1,892 digits created 2026-08-08

Value

80395645790811818198638292376187247447209827871126522723315420940127048474142306563845849732146783037156977764455043080267419619286133188021552335767870215224773151968782014019933927704396025871388114589053947370606346784328008915768588358397676952327695510187270441348296756066275184914779387400225674053150519162225786017604476332516577903790650248392100077411052663315260852271638966618027507356406581509699306288979581503595592002473903186510913702603977934957560057527617945134422634082798397381453909504535720551605802778543883034389979420121371545457523965972385958939247096004882104371782622521493118509254988237888361251393423924399490056406933597941252685849063584677226962428947527023492060063040362559345484011562813809825184667913894803300003671696123156200094394729278900455516769338243821717434703823515558736172929994384942379148032720076036821497751317852509302331327358022456143738785313460071689389036353873385343496516592504286968906311650885076680617938793426477065702599202458593704979021582825111742588185559921131466707918393786972002799267783872878295647698321820915295032132522264502211911250493436504340744305619147195402758171368474560778826776830407734193973934027380377394973810608374204181970804756772251801757256116543995382749761305493573124111968034388241195350027184999882065575824130557975321636474585761841054742543821923197087535916088252133935103845139372548246506927754317193182592591946297517601939003859670806503608286471032194113884266434366614542658299563373788250860211650377545681388511297815904673356692652919668162238911521767057881417556025319680789022200706319398757457916776772247655003403708447987952629455483884522386499663417307387320657820424828048551337324401490584348268893724372691649017127711829897661681310985564074066355234902366548546373429975396902665084561767188211399295085363980913002914612607614700251173906531407604071231649
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 2,254-digit prime (178 intermediate primes).

Certified number2,254-digit prime
Certificatedownload
Certificate chainshow step 31 of 178

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057950403 --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":1100000009057950403},"decimal":true,"detail":2}}'