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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 #1100000009075706969 2,274 digits created 2026-08-11

Value

841573559046934341715516483217598752214749496716932400985774700575057599917350026716958206855996609936325886950582767548386032976695799853799509051632745654056385114703850627978365757893424709289042931477162675551290526044213544339490188043988880628518374863543358908144470608658146399766634237421586649216505558210478413427314444228325493719971685414636862343010202942560070376764285636338507994793166071077563423076881619545605526766579018666898022688490618809873007628268730230351210114135438704317062795423218981993139933320304328124405870946815704773526126228395851800720783120955708198845299296353508312713105021229801381473218997082759369655872523902703957052400455855122793019058966255711022661514448667263346095909600089521487276883078354154326035671149290010262925097083401942693082616828135541949461298946692157697558311094602096529372506395972664449130932177508413546306383278210438203426970804263441134428621982328891303539241703187016011779643796599570053051296889952853582238341895667789617376599528954010177348938825463738106545556051718033592979242007444268823690025353809091638768260439343792178245609282219984084821823121292871841933395470904792388491410792533848760434102438933399414577257645989653333692895463634258370244672456110489171036389580998539850762670189601057222938624448114237670686035352766140893952793276698023566170824196641826720298684200282984538390776140376282825035863319344376757795578256486012857358952337825238244973304380782497401933863317143255472481593363414531486448510357774060249427410283764763147101612168710424887671150160924468383849522500925707571575303566778988469259215202020820301713271927952879477376336055073226820996681662655169413538095676004256275194263046934687819601890900062321307248398388948797907016112269808288805868241092663968981433103243182381123093798593669007774570232087876663916712825554262902847734066570517005075958506107148641728846643668761112963385453054520945623517628765795785447323854768658200972890124898220399884793644908649285407763468929669474278724423036552600799994255993861995871884952185130752571609881583641169319718206826594750142657420851143048784467482335656876366883037226227622054593042940293156893400426206548099296813885266094578342944854849418614359081863297549560209161231073
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 2,657-digit prime (210 intermediate primes).

Certified number2,657-digit prime
Certificatedownload
Certificate chainshow step 28 of 210

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075706969 --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":1100000009075706969},"decimal":true,"detail":2}}'