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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 #1100000009105165296 2,861 digits created 2026-08-24

Value

19640924238412679956127481532681896856199207825788813852785590735522775514732840507571790748950652536451428199934796802265598329443946078188043129838218864088876073770916879130699810383189465369229236942251689135413683210048143123314042987435518580675792162166948768339230560642857594936219411644633971479666642153403221400108969008212293107892236252675698303532494227955744110014132214269820545017021663623808545368386376712866481652000906800782621176618826435633090785036775133495695269700369716627880876677971031796599195635858433343402369907295197482338837598323520592845209077212607957205167133057992714062116318941390183408595880386451619398926510718972766858802668989599511005401147083849532915239595087706648936420050212376699915681024190428692444676709767898524850113604986664311775243573060291371942439979004359181059938029609406867251828011740952457282784113346526123614182034190598676811509060049553024120498970259024212859229668829466674093048981508011905400105977503389151678143520583585312420081719233568232930583097319367576317920165481575216901114024289444539423731757405028924620021161573381918006379394607783887307866899767481861913897659938040875305330410719431133597463149550431403248877837460481766973494289637035265069806081393682983139712785494865601233445040917081326343497300975910104758871183737722886401861141056235703737197195877650888263579116899202361401671290597400570740304570930086034153962538912827919021870265894665558667472054421144403970846127404273004126324035023232049280834864709131780310819351648553860707115906379193828338265517950580944554024521121626083595453097411825651962147813902359462387060385236156821158541017996193760253771992311647549640442339977728526689942414667239771242690843350336445594912032877409380459060654847905434612226147384032491947628742672322237495156334712548377088324569099431414256502138861852750842547749309939982661572708704638751540381173141089139776685298492212343314325643656952263650676158441215433714903265380119681305114487625958068304791394521454752734456331937547469451656978776835694524452817793892251911470111659930204694539729008122834362838656492041070823143722315799875749172559920622649149024101226719163366965666197996650326734862710258356651922011031822258232955271874638951955270077638285178060342412560006537351138673958490200262824087055598870787678080393865891922473955802130845007348664741323772663460031925847617499223917204766664760330168357334668535662301610269895192900010367460783183643158447897734700713205575843879536964826768445873893278578801141301853001600261257472073600612004148116598970774480609870554687065530105949938103284899567563709381475257150870362268220816618431456332143466380768366640587923214018897414826104945754715104075178451745786742785594676910753481899069441822557500605395219796920538793140974831021743747593448860891813435607179400939
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 2,991-digit prime (198 intermediate primes).

Certified number2,991-digit prime
Certificatedownload
Certificate chainshow step 11 of 198

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009105165296 --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":1100000009105165296},"decimal":true,"detail":2}}'