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 #1100000009057487729 505 digits created 2026-08-08

Value

1967516990545503947655319325954157948260558365421550790903276761562018922083895637330489579770598136178730811264789442786760018135312565424403376747058364587153821158742724633510113535399319314974602951046942015560619075802521823168806837528062176353046086768363838093549683769154976890315400519505181297482812919207836315950906015691361356968259936856679414838875973795321519967015818196558244529846250801149138539914506261375287899872389805061454517494139811405680224236733555690210388437864571848883121
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 143 of the certificate chain of a 2,354-digit prime (176 intermediate primes).

Certified number2,354-digit prime
Certificatedownload
Certificate chainshow step 143 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057487729 --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":1100000009057487729},"decimal":true,"detail":2}}'