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 #1100000009040261245 445 digits created 2026-08-02

Value

2120678021062352447193803944891180150219647452786838864302532776827952365526834264503577014030814082656827096695965117903767416795129417959750740955998992890463114686294075173947866399294727672808113427475823665979940365121608218656691055593109346380279293767108919080567231979765647296769011735582434715179384650458766558519311782942074396389021025418555816142875022506123137588823905472896165284274686297749419194742650375952713169667983067267
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 75 of the certificate chain of a 1,260-digit prime (110 intermediate primes).

Certified number1,260-digit prime
Certificatedownload
Certificate chainshow step 75 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040261245 --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":1100000009040261245},"decimal":true,"detail":2}}'