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 #1100000009042288180 452 digits created 2026-08-03

Value

28370671810261418481116907944736718057321337893401112124189302329220836161940299526180144834159540971817424463151877746625391616924073055358574460736352091478274235497872917439284112114331508572838794932341549211776383335158257917374822500791179384700543516376319716027931447882906356837691844095475000086170329299768611887887540905055620522940804477486116748376555517263580397111515104922192850264694969243704643544011136955383708551420626123740655861
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 84 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 84 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042288180 --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":1100000009042288180},"decimal":true,"detail":2}}'