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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 #1100000009047821311 986 digits created 2026-08-05

Value

63164100216711720335490125373271793072862275466906194499751221023085212031161273573048453129814042034193072402650409212523730823325111655393071655930216681560900290382212756305124984925819283348022873787238627508574284857855638318471728242173422767721846082197007905488820196198027587858223176462455487111551286293709243618327393039993901315884010358101767467904137695038404759431491499325700738212637850116126266508850462447390975499825193943500631738993769220365599475782993086768314472689490159925527776874656887760235040343129267410618640841834029066435474874933996711854271150098258435907815947696671906945405355122395900727478472980661977409470471101929634752899211342019627540569639950338909929755493775523943826776882970961129154739613884161035548201381384821469062432028366387454791279004284287934444718863932280780500110685794388369724394142022929834536849482140848467035753575087651320836353344361960856845861798359016486360865835240358988648077209143709171929330821909402441
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 1,470-digit prime (121 intermediate primes).

Certified number1,470-digit prime
Certificatedownload
Certificate chainshow step 42 of 121

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047821311 --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":1100000009047821311},"decimal":true,"detail":2}}'