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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 #1100000009042287782 1,011 digits created 2026-08-03

Value

452991246319053626362995502514289147254037491802611765651533207777133500581618006968419805624750476646240981477347980592527186468274854091212143576764926143476754634271810641123420362855095675862322618253864298837938681941340819267273103856172402835285444644489704918079088002166105959797158281963240557364798429536295200303236946032862630643505006484892681812803411453891594668302388877771726850796630887189631542950575039322732593033766519655156539950624221873861320808837575347023694730059884083434758011214664230773538299250580823259479954132855421307127113133811217576703021702906848736193840315478813844677605492719026271222521428915015166595587684742957624232757033876676711716126977594027400031657069088690756927628027415958102710252084157952355051533348575159187168731870262429761761856208761584010054821053721068679814637304907555072261106759787394281349349326149658138455734484477170732347605794344985908222818099407464656183361292411365205394146064168752841645220104090613579948047630383683813122887
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 28 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042287782 --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":1100000009042287782},"decimal":true,"detail":2}}'