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 #1100000009048452647 405 digits created 2026-08-05

Value

688698540942389756574798210117010381649478858140953644288439109757024709048701468023475758454239673403908386704866552050806049103548725351423721021518277188602168635645273102005065956918536622862277192945446984585814260084892973429040946014069018909163095604883886465315671778194458506930688810651966925568864253974840619098867941536756230704788057092830026712004761212925038753293377872170653178224623133
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 1,491-digit prime (116 intermediate primes).

Certified number1,491-digit prime
Certificatedownload
Certificate chainshow step 86 of 116

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048452647 --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":1100000009048452647},"decimal":true,"detail":2}}'