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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 #1100000008676544139 1,142 digits created 2026-03-10

Value

19488319211178681271502183288977753076343837429028120261749892273337181168153765595861716227964114128719804997407651468571105981921139295046179736477037428923979184747268063644986654137643747997771162856084061726137003101968157672746222544361058653820875776329373961724919043696036004837278896242124079369015126528455575590285785506089555875486092760397191046142469357790758198584615891055229809818134112974631771908437963429599895475328576069610606475718459566241686521804888069397325881480514958844027355186656878067956910972433986313490575542485726578298901253354040258309722161653962591489716992226569021953569246173131133379201286410346448623442592825713995365043047609543614256438389037014273635074848331121061155255314800034388123474467780213360124483146205670104864681724565233478258725656016033903861304043766478614789720495596735756927449878130476167115757453227582077531601407947520655021422012153225173614959459677396497985566386329751141826476460096487347134393694093395012220340698120337797246147649204230591396093381487625675841269057843170178638000330944371569516289406574221370423307072374957093333052517494721367127907991943
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 33 of the certificate chain of a 1,449-digit prime (154 intermediate primes).

Certified number1,449-digit prime
Certificatedownload
Certificate chainshow step 33 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676544139 --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":1100000008676544139},"decimal":true,"detail":2}}'