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 #1100000009041145921 348 digits created 2026-08-03

Value

414689896390336797074250654126163692740502844108214481125624616933545995377650637118459836032488933445094177389967403646278630567463989500588097818366877071503761959626606779990776853211792474737896229324490335947717713954736248106199693847414863632655647038050009431046864280096333461483946923808297794696897629501702955332954270952250101088548409
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 1,298-digit prime (107 intermediate primes).

Certified number1,298-digit prime
Certificatedownload
Certificate chainshow step 81 of 107

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041145921 --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":1100000009041145921},"decimal":true,"detail":2}}'