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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 #1100000009084007791 1,819 digits created 2026-08-14

Value

1184208639704744208996481733020897118509154220220017813345109733537820901625236935686436029691502157475119210119918994221150269987944365612904741742591650515229903676479752974900485748405814389543650658798150817079044530583880217542002482481375990142905245149747003380267727402726230896763651529669802952928220072042366926335022116654717134962419125501635839810457742549159459578589988583849552622067195448550137216746484599884809628451397765247882816664307005425528610430286622889865763793154034130411422066471413120554227365202263286382696649441072831143867224034898805133756000583254575446306205082925856336518500860963240848225918686822527420669665635127094231435017786560913959641159560853141468912497111460614408318493332004547986369331174334559311904955775984899674286640474833724176359411161625913769563318465256509759895348956548746411577674353003052909479179641397230287296307683326458934552680395490952294716419166202019026365695522263915076762058618914726543865597867895666051606570733787258585825840464032850027583584044965174505446314325750307767183524845599849904519543484263101427557605865870844117134804205143036210159057042765318630005824054109317171263835733551825592609323451872200887107863321958052942641026729567763273425910114552837639964362887861945578127337151503184349377573612392890845068177180744622847405688920584537692503647676460961393545983589942208342029341585184466078976472803414119267926930499741564222940180833735992993299583437692508420508474691157248316809601751086375213591646138714974732879774727621793555809458235835729816125833883614571617804023562379412723677808307028435495964897658003523213687513686764035734712943416775296516627667593203184033119873574217662147067719507144950941175748172578121704840420992518887995079072289188074987802510933148945342267159972809668653283
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 12 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007791 --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":1100000009084007791},"decimal":true,"detail":2}}'