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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 #1100000009104460539 2,221 digits created 2026-08-23

Value

3971862721043718063148308372270830259535580928008256992171262983558038921705997173670138778020439205757533741198433789319305729087222838437239936452925063433168350565970169656446725829367678135903490449519654598442074930639041976828642082244512539944897618615431102701135525683279572998500454193579941794645416751302618568918312486662417283485437079747069260097880729655116856056717125479207706701638021850813061428936294068541708791708728344265107680247734343926024629399009574079742894856723281271200661018597188426070131138357507092708050422938988446936063936438083796391329705119530035650549457944054357037514779278349865575657614042808478057850425934977230367688824764587477166333012156160857917245652733606248836072569918469592435368794766267559812826879570325257197719553575818945919009945107663369613032976093457000912766255394614439780882527858623477570449776784733975375919647398782893715439579751156081722405558234656496762134405574596689970607162091444745129835514098339812119265392594372968489049603987733048863119604344288071109018231073494739329943849530326441122928299953722632642465175925212345765205798074988284781296337393447354154349414136037473584945038251484231716197548160184089385297719476199392046743437249124396415092406451111106515310205793116052565563331407243827011196275242211729149854759210834003039605191680012865800618508391647930070731985419559811609938975791402110576739085180392578611173708379594237831889858151722725264586406090731286209983793930922175508902420234922260826453102546323888944543034555485004099834077159682522379910974182394984762534704012268518054811704905572834405733601228178945753350850542790839890629302741113592272816407321510059805397044405104247782958126568747703461466284714558814510119587528451148132130946956515013849361319204128639387658869577295174657563216382393004138839513535511028836472555446466529309956024773433994425112080875763046574234148371366231533786855242271643527099491868000421042689049153571649732978583421659072038578110149409792111376060656878308287876772505987275138331640169434310845457619014609285404761694680216923404748285849138667555628482820691614683650378174881122741004124001559275125661595767377278361725930462092079990405943709
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 59 of the certificate chain of a 2,989-digit prime (210 intermediate primes).

Certified number2,989-digit prime
Certificatedownload
Certificate chainshow step 59 of 210

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009104460539 --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":1100000009104460539},"decimal":true,"detail":2}}'