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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 #1100000009080761448 2,010 digits created 2026-08-13

Value

591189475069482948178368883339972156667236416470906272457828962783452881620630256739021851183811133435866413070728705832204928449059562486921268809063681943985569481379180776618295742288510615191460819665935438917440483306158376055481996145047127710034666876111627824375261422271770820487109809489004608517426114089330184970959835100189574270940737073128435620833199839821395165000320353666557253871586835426946734304597250408842319447117323217648498423544883861704325041728033573507172949311047574052750304754561110662113107334037830789757784849126838961090075767709531556832755368870744089775189312293869584534833777005065133399513832430672041920717699897175532064319028933670051244991531595826337028168737067974130559903729818274073478917532061460047356667843804685096801259044478833250839883474192335473719357068192940482555174710400201828898005978534364706155720087253437399019739675694187031916555036679375583454617442113328515226703036817312065752579834425235416185496101868172082614149118471322251443110944289343884394140090842366319426003959885735420718513044283936072001302388330973984008974968449275777215820935766561881698411462180124118378589999795525930356911769907664311053342527864129375154003639327944545936017958527135788018519421689742833796585248233977411328006563231697603379263274469090912329186834195696462563257159156670202408395846794672334950098271862813127464573471427723437336158403669187213434902471983900998990786002008866114586681593843581498498317911631475014313052447812785197117052058058986564452688299550602693122990412732257614431633048586815996541528602632635196069872006350948404143461925041134421442200055122009878824420012959389527156253170654662344608013930468716704629965167303802515013318381409535116171611553350034146960195507969648049204549416066311813771985693534351474518809091574663667106513974902444315963875430110006356928763613358650110475501034283037344499664449032471819701966076290871479148570124295383594619398743440717299699951758109137470153209507270399
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 2,184-digit prime (163 intermediate primes).

Certified number2,184-digit prime
Certificatedownload
Certificate chainshow step 13 of 163

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080761448 --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":1100000009080761448},"decimal":true,"detail":2}}'