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 #1100000009042557971 365 digits created 2026-08-03

Value

41239676822252195454247173423042222202024305039434373171357649603445084449364406565301436793064510386112668583652167057354166500054512602225978010075121793761072742212264484215350708189922619655438335926161377470792386416005131806733404465563619130930740434177953935680333986723080280952229396932227598614927380784700055014889462510813976265730456972835459169186641
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 1,329-digit prime (77 intermediate primes).

Certified number1,329-digit prime
Certificatedownload
Certificate chainshow step 60 of 77

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042557971 --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":1100000009042557971},"decimal":true,"detail":2}}'