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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 #1100000009043400340 1,274 digits created 2026-08-03

Value

11428550898327701461040805671205354576665886561435803645079328940579429124825040307637592646377591186522640320093620421938663951426551799147230935060392105889884549838473038646691822102199062435939405002497606916650342207627057483428320173103217816185770180321613300052822881866597210397718401814933552074317731536372617181324455019919744557316362334820174790294588783649336688381209255592981534580046406326303816520549901671959903238863311969008195930684669634199547866372769627406246334315630166091155075369519844155222479743962445188355626836927430467250568817795005597965493393647015598005773422664397846005351567592863241270734882566781805265292582162176852322278064210792332357160042585554702584305353355232788124029133371530882913422794685893320384609671726202080827260015593004678910420284492329620832750672571102389085754520808621271896755152103326803240306352615963390078715114953064503666903440583632781659835828312609224895608080794898988802480931371936079989746587356779817938282797398211842442781368060205758455708068008338081027245620324875956187969047638606328483378206284557730069728391241908943258448198998159795586018525101743474059831054905713391768257389053309217392774938572257589629297329718225228916099840914342724109423180867117526180650460054439477
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,359-digit prime (108 intermediate primes).

Certified number1,359-digit prime
Certificatedownload
Certificate chainshow step 8 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043400340 --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":1100000009043400340},"decimal":true,"detail":2}}'