factordbrpc · fdb
Sign in
>
?

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 #1100000009040261256 431 digits created 2026-08-02

Value

13204791523841842251647983962989413099700169257565559719407159709778319748895543602307540455295091739190694578553962643094847341304089148534016393790162553895615607803453500952730698389092025556455754908987724849107744362872645118941013188338698353072209282572361727643960890313591479262639453495185260128492645487725453132867332679340229083889937470194657345164423325661925497990668184302967462183376467091232741702380649113311381
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 76 of the certificate chain of a 1,260-digit prime (110 intermediate primes).

Certified number1,260-digit prime
Certificatedownload
Certificate chainshow step 76 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040261256 --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":1100000009040261256},"decimal":true,"detail":2}}'