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 #1100000009122751831 339 digits created 2026-08-30

Value

202845717626720559886500120201645439495894384053506602149384957546343390782095708620263524472856445247062796632491373453985726673377122924512210068851706656982911595679421504637521139875314181431886852530836711545805970175539943855303820967714468498799335321104918007228021380170959255154158231740016065944828764355259337178862928136164213
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 200 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 200 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122751831 --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":1100000009122751831},"decimal":true,"detail":2}}'