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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 #1100000009028283863 1,008 digits created 2026-07-31

Value

564136813406708309156262569105360686745727163315757277215129969115682271584002563596930563636499177389711134234169735794106640576880364151317725691502513541402228000682700082983162552072824434394073273658417991199628268720767373352322075849670537124012534481781641792599562430543705130929213488883507488715759680250526688342966927108819965459113290417621410842329869474203963593070764379232732097759621441845724717462208607068432214862848491833116469760601800768867321672646870403601007452454728522127436975692096104374484851820948281178574262945968891682981588337372589873423832039360188585375034775090493683623603189442809379035931845037329784108514533521442537894643116581872267746721933752649140602887889043856863818833380165242217626448390488434279531055951918114053405578678853473559306337154242437002530120008230864020375370187008782452136459994391288213431901493243980090384169665204033183176203681977735691516404426342246146682492079475929501094166361631966829031458894959930627798839192973259835689
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 1,201-digit prime (100 intermediate primes).

Certified number1,201-digit prime
Certificatedownload
Certificate chainshow step 17 of 100

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028283863 --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":1100000009028283863},"decimal":true,"detail":2}}'