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 #1100000009047427455 428 digits created 2026-08-05

Value

25968620423805777573623701167297142723414660163933489224127098597503204885543569580223780692746662788888675500517569016038132906745174581377899708784994947238896611496719349250444770377052728005387125075116903875302580874922428630240137359569135006839329499930622111188353442663945863517291789816012023792965827325477230212963614917166130053535405774753218461134894662459854341880451640401350914394287767443340297003796679176979
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 91 of the certificate chain of a 1,456-digit prime (126 intermediate primes).

Certified number1,456-digit prime
Certificatedownload
Certificate chainshow step 91 of 126

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047427455 --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":1100000009047427455},"decimal":true,"detail":2}}'