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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 #1100000009054271507 1,117 digits created 2026-08-07

Value

2858782040130942004907324626591797635741885920381452451691276329102592294517779633060955135229151580534030311578519654879699042025771274124652181660524730388484199507045592495910469368784719063506103398396536565205196424660370476231060796178529862410201269131975639045847140117166511315058339760567082190697804467713110696248362296802119194819910614579840568564006538269669905467901777669581050779141615010897398964901061564331653214382559257024483289850053688048135646466048167496356670299660538542771365044602999713405629651070927090669575684596089707234030924938698030728611618080212583057791348843231704293587900357589110806432935914827528712984011821714900238406859840918972592828995199060720003744182039390204373745631584752971924421260371341577659096639200058982100912225000616803419145923996910537647891002472540689407576352186016615744001167332733448801500311639790038422303342494311286274493100894017385958418719899050187336678721815260237073334399580058293322163026400942336629237433304717004112829162401486704844289541449034740315375554446538422818010160832149971832886726186801139867272883118213130424857
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 111 of the certificate chain of a 2,580-digit prime (189 intermediate primes).

Certified number2,580-digit prime
Certificatedownload
Certificate chainshow step 111 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054271507 --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":1100000009054271507},"decimal":true,"detail":2}}'