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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 #1100000009080477811 1,906 digits created 2026-08-13

Value

8920658274098974492294284450406665528780058814620412946996416967717901342189435129782499336100020307975449969995419991527067600836501942776398392741100700879503487164159222672280515093641782775151596352827157253979708022404593643938580840133338434472693882159543792530528486337718683289200944838282905484301613802374564997020784658627131582176702772175724529262321547728189793237241608874745707829302326053879768756529895961283991810209423125957624781460151010947322380313062734789532640751838071169770798017072296002166123484566261517357852653092727443716883184193383812643385868380349550509461848368523651042241293693889592308829481512403503314591341034281724189056062063372089100025249968079096717426368628472425470775694455827650802373482506741203374928864393879022437392700762502193276310077614471271887479524054654641897631734798543951793508092133086904116378887735732005609216927109830945139812180506052334727230350036012083956819640092339692054307942046691535071818514358877666458633151681995904542566620459995482844318328293070419889841100878731005502072369496006101865382613904890375105705555669614805153075646371555090946241463447240885363037452716008036011435414132398205499037800473387522151851579437488236310522067586864974632159728698690640412739485136113799859646073679276424159142933847304401814288404933352729795368880755807608549355876712698509455943391904820133978466153942185390026314247050902444086160521149659043589143998301350989885673579720120619028787169821931596068263002588568516591126903081598181189159333741675617745969644211613571926263223051410463559815112159417236888186596392522677619165954025368450041411993804125328407604619863024981149961692886985044703219758989044508716922150496301472946556683271750060690550656656133730350741753433067685543881229991803803860351348922390881267252921368973775515538501426741785989432570901174415805554233444964091156511296893073958273
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 3 of the certificate chain of a 1,923-digit prime (151 intermediate primes).

Certified number1,923-digit prime
Certificatedownload
Certificate chainshow step 3 of 151

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080477811 --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":1100000009080477811},"decimal":true,"detail":2}}'