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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 #1100000009047454918 1,110 digits created 2026-08-05

Value

647678032660308531410581197630521607579962625686621052505030606797910306592346907688361677261504958606595074162936475239869099753675717016146823566474497152959189342562932392182423289589426382459163365539885777823866977283926770101360104321687000649477913757975900084976231466648850249582415461998541088681559109844618964484394938601125279491569425217946874416315632586377120513361428447737949173509911010429541189986912811881364655998947453998701602317633168288617385940352298033286130673601214362911589698362279364604103087929964187016324067199307206617200274410730279451108662351427702101214830683890026381639265762289745609715592059442648153826060888187636162599948661221456163954297585537547152567264339103238813849775920389676631038316041150017033720288496501939083731809010981616160060279243165232419568807834254596283622596946968559633815944952047205524405564753600859618991433460764549075723260022383109226978684980215199487606873746748719288363503318423645197896240156711672208631931089751759395981391423081959246191521845333577347406432839968416285292002951082940026832489550198687995916262726310797
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 1,457-digit prime (118 intermediate primes).

Certified number1,457-digit prime
Certificatedownload
Certificate chainshow step 30 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047454918 --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":1100000009047454918},"decimal":true,"detail":2}}'