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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 #1100000009068953231 1,255 digits created 2026-08-10

Value

1872347455014827468428962737704050644680786723435329219738604166171430174575717098796020897376359862496483581314806983086906958051776299465887833246509734485813972556767267927071973150596592843633924386419785855090293747855031535783793705591288229293234819355296085258006570857785539708309458409507114662817005056075474717572306017659077492781826443772684037784298370855901645252515822500619291105824955363882228222963035198072406337627090642028068080461540028329450753418175239528601490949664501179049665159439306142568230478778628857581277355621821182583875668879491674435808372108460559887645913634928300044587995175755551301627273681431209158461880295599121613881416401066378360279833688936593024690159371159722218198126689692376487928097516681581030396929360008609407384010724126856981662364480439694332525858447197689180660364353425330002018487370510426984773884617253084131741345208679045984092210592943846073133449512404770909644074478989418783767201745454078330921767681443095847712216354351557222671226535091667116660106410010905982690370993877211637746201774936822717224565600236103123925828880338390271796582033912438912645277763691943298555934400949552481940152654341662945654767223732119145271390368522031745286498801840920491421343335238903
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 1,750-digit prime (130 intermediate primes).

Certified number1,750-digit prime
Certificatedownload
Certificate chainshow step 36 of 130

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009068953231 --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":1100000009068953231},"decimal":true,"detail":2}}'