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 #1100000009054394780 727 digits created 2026-08-07

Value

1671865225019122334412410722242868203096831375228267199368658238885872063636860913512138739221377600153092508116247339011692226078855657491553589593892337735006579347966708809158026528434747953511762310857248296750270760823441280717364451625252383438619863440181686508704168171426583152531473190447106552684968749598972058756055725458747752754751848644436546116871747834229425851568286461845687735677162860226426577797820283781640336829174960353950730399471556045355025881413176667463150535552896820724029888036730215349337366804236003981492273362067162731233990981349571606812220870776966945540235447705672756725595959063785158186892681996016674383320392459883520383464198850282678648724851468768949765403159865626589545620283
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 1,625-digit prime (130 intermediate primes).

Certified number1,625-digit prime
Certificatedownload
Certificate chainshow step 71 of 130

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054394780 --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":1100000009054394780},"decimal":true,"detail":2}}'