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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 #1100000009042190819 955 digits created 2026-08-03

Value

1233798608573294360193052027759981684402905796534672929135135575579339855105635625710819123427773704090252301830596869016224562597701896555656600639210657313438890606919606559105386838668404920709568129154581818920465430324637177775311264539261428526720566479870464932346039937961837509967883874958542017747314326235793059413308331367485715595076723231125014552904756383426920878180477646497049919170258503413827493560454692529197506550452403842307079050750476514730232164287050846734199335579799169633400846911146490368885212137933625095934458270891687242854138334123833918381612995221433829890374586257745698489215861918441611419701999783780311298399903385797841237763648669173639789170416358287374067935279569167088042448084057463837131385853901864500245870686811483273678636984100133796651344860315494569449861099638776228675834503989789385850670512645139743839533083351786340006587393901330394137644587376122837745955261073323490819565993657762621447
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,311-digit prime (110 intermediate primes).

Certified number1,311-digit prime
Certificatedownload
Certificate chainshow step 31 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042190819 --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":1100000009042190819},"decimal":true,"detail":2}}'