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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 #1100000009084104856 1,833 digits created 2026-08-14

Value

744710871225453619794117437028599489588143392377727305642322475484517193740086419437670146458788072049074295190820819775912105360099327415523326297180862219772432430298330172758025441036340461235988062998717504742437242481854152355305249333832421290431352767972896262653928364927104021335797810641244014077443779224247134985179164453779196930490630085126342418112506762616788673488529487985259022007773901202321763458345978187760325809988851859318682611896378561000539714073787603646185976612881506678712320685609028104397991508456384213325103234253964113538430085539060692496837950858763481465595806473058474234082042069526839092143780477675774892110886900598049314229445515927847371317943747884981600835545179115431263215931449685325214082445428543923903982328422244424009969148220622221221860760089125830566187363415096791442133755073102205557265612373975163368310009369206878788196876598897983191794586278273638928876945140797243830483675569011417804234836186469857330782974845951107596817133157043376881944458238980461236271734728967344399573735123016576847153083621893560140391710759830942132010907429492211726012437944935988179376614353270888626639975003039524957089336295681291201663641336573117541958093334388514043422738418425393791083617750580372915255818107638000712747764993223990654124002431601107654661297178838250680873720713576469367729901201465881157605858949339280884250434134621806677442534359072086136723361810879889414204228987883214064255643601102427348552833397146233866889592290176380977715026605031015703181081265520530935309474741479848897213677974531222732790533063988892557876314216061317185879918614702147071253814093479523111443916586555133875813646853950828228838407217594149224830116276151325031962267132555362892063252055103427324123368316606320419147308669304183542011493055010775185827146741568647
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,943-digit prime (156 intermediate primes).

Certified number1,943-digit prime
Certificatedownload
Certificate chainshow step 11 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084104856 --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":1100000009084104856},"decimal":true,"detail":2}}'