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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 #1100000009078253288 2,100 digits created 2026-08-12

Value

554675036883365014773763700390406921927172502339738007536599434713108719031415820849514995476671732092039314224878457374039905306480256239057484890886613257998727283279808878643009172926943254435698642136735894602265112591294710119458267428266021562334157989297058963696457360648536160791617764028247968270349263098493719419891703754230985897909475723210315389694988734050110826211015272461322694220954713198194738277244425599741577975692020823909680345040275920220466109547873093438992548691561382732989619109551422022949002374530459807179578822060557513948051719658484681713444152687542064628824082511381774446850330059473916802660385744914520301959741433123240955389156423426068995064106394687225133692817317005308681918563956253303795096897186734349911648928120485528373084856916317162378026499856990156841986451772654932148505677755931193253283480102708307846512679725870486241982697363027531710391258337866823659512166377756299341305632496813077835666953308149374401542595464876948907605659670634460646800621494325684989430531801029648172051370765028905026584017224015680486737070157218389416154184884953825623642530608707522213882549333087156831250754510037072727685101910723949486159244782438132188489495709581590707795818855459936296710594883723099709715942628345327452060924203598887040521101106748829679099636583274582097143406555886569590797338752348027224711257529360970617855608446051499058595708461398994578321255103215795402307121078104464774145589908447761108561088117296195333670383506593095450136841003098943650319891342932489962305133649687585953757147774224177875052397221815699599286960210880765690648199246660375369880179825735001488912517536241091307790480289228171840906163201485012040918295611416104998054423407299428159081341262332824611180281211959981767056495300230170935949062223238397095923838721452390079738161035302298032571978670916601363880113722358671592800608063381892339135254386318392546018761119436483161917312758771363088430772183932901591802596311580359895784663512278611106928183461700340916379009650981019185343979460724509163457963697602268452175326623603
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,147-digit prime (168 intermediate primes).

Certified number2,147-digit prime
Certificatedownload
Certificate chainshow step 4 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078253288 --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":1100000009078253288},"decimal":true,"detail":2}}'