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 #1100000009078200080 307 digits created 2026-08-12

Value

2205460404508988940208253584886119778413583265285844842775051116005927656345588966592375132745599023269968900120715390272598296612271122173755784777230536599818931510543754348496546737557352727859953026138285710655678862406568829147077243078361169845902786518359151621749229844942773720103627315573444780221
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 148 of the certificate chain of a 2,146-digit prime (165 intermediate primes).

Certified number2,146-digit prime
Certificatedownload
Certificate chainshow step 148 of 165

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078200080 --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":1100000009078200080},"decimal":true,"detail":2}}'