factordbrpc · fdb
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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 #1100000009086009773 825 digits created 2026-08-15

Value

399319426439566329443172689722107481205684994135024296520058889804131366473398931556543680064645021794927943159482723006073721445521166635260935653852456021122044967982240233457888242622987173255458189848537491104635590189896122731298601393826553458072301350875210890554287724889343288045671116174613545666988335412103380095605845217182071985762025764580879438775796072830036088457694883202205372204563443244020043714590841623465362538801752247785016992295481475200136541574978980363025016586338673733828552174567128606163883673495696919821508386808958965941400982149006295694047148793338285344456997209446009900657458850298392047178946906241369795006378435634115488283959220618678721458544393206046090104186587622695563959678621113495526530429078347954089960205338944420712427517522880707821662186941654079308797113925814863
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 93 of the certificate chain of a 1,964-digit prime (154 intermediate primes).

Certified number1,964-digit prime
Certificatedownload
Certificate chainshow step 93 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009086009773 --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":1100000009086009773},"decimal":true,"detail":2}}'