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 #1100000009053587918 328 digits created 2026-08-07

Value

3207903126913089157272414888667720735197880493939723773988152054142269235350280862383044972497492976632994813827800491929284174015318728028064775509166001393838751895943236632526340481388615977989455073613543386410984156656961299111970704340805531835862372585508167520501972387087227340989003540693524700091649622907735334881821
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 107 of the certificate chain of a 1,605-digit prime (133 intermediate primes).

Certified number1,605-digit prime
Certificatedownload
Certificate chainshow step 107 of 133

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053587918 --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":1100000009053587918},"decimal":true,"detail":2}}'