factordbrpc · fdb
Sign in
>
?

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 #1100000009091972908 1,118 digits created 2026-08-18

Value

18173380517951227738845400047912930878025215119535062369741740459358352162154755433805602314585369464207315337495067083898174284146670670122872135374751171613713355145522122301136028660936309481269838219534806826417756751504389847431392338789098656096684662427734077400827182271069004926222648687744684115978343444870988138228573431922004003394421310468981054702459855016210495624165435173918773744181410180714655655306514661997193608370184061169519295338285316803543589168428392010765608683102576200085054572717164121367459934878887466679420799975213916939148425781191737708335820034154145852908677678861674045703369447170481084987666923673020337239503899033125205376748096002884923583903537474068490005383680124684820581663414616713610618366756866946146939351696666512125429815972458895349250646513945303351679435689847248924621494459715868062550149269195185978164211291705441959037213778188598383465891152768129492246034161657977126684535370575523098488984796047956328991796706579381050187677982804383823978655227526027036813376577404647819361066715367197505230642144091457781922662830002930657926900687360149662957
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 83 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 83 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972908 --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":1100000009091972908},"decimal":true,"detail":2}}'