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 #1100000009041818456 579 digits created 2026-08-03

Value

427847744919279914693522612899839455048424553746519119775126345794553386689318282782887988444479044260056195285259529564950202170402976184616521568651843418134418352007119802183359293412032768320666256037248338171016428912830559907856128796387599656589421885734907172199039659628424206976568718946418957486924639724943423808864807427938059481832127895356446806114877381149474061233546670647374972880641827770265935313642991283825877885068192762225744705708883527111394101332629363771898171821804818132836071938364605309722285124830452416183240988840815551044758736609283327018201
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 57 of the certificate chain of a 1,302-digit prime (104 intermediate primes).

Certified number1,302-digit prime
Certificatedownload
Certificate chainshow step 57 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041818456 --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":1100000009041818456},"decimal":true,"detail":2}}'