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 #1100000009071048511 876 digits created 2026-08-10

Value

421083630406382891641336612235575711170917904258494387547640779034209538380476067534451363007251208871269822061235025634583703041404336906229422934122396837358190778699912386589332987989760449590312814402862807155110175865255948214915588551444525241194177395588379907006137534859147960498142846786865441008658342613604261564474446261128098569750960483489953057808337775597537364310398414524222796978771516011376247137860171122092321133973696280607773803690911086734441918156636129529578507593356212209121666780552273076467501990693920429671590477913598593199158866703692648612191720015904292603286933266432038887596236305202118513849688174086021877628071266709715863958557111607149159130219515566831464921236691843011504805093310154084008804563222745584417305325719701487421094626168531532788989629314541148253786482071136556983548795979116429550553672559840228158064784931183
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 139 of the certificate chain of a 2,643-digit prime (201 intermediate primes).

Certified number2,643-digit prime
Certificatedownload
Certificate chainshow step 139 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071048511 --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":1100000009071048511},"decimal":true,"detail":2}}'