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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 #1100000008805742287 4,414 digits created 2026-05-14

Value

2181808531039517790996729465779495465521140228073266830428892916014673490197037883482379848467493725334349190343810446391113699596687246006493832698448723619573218561197102409835812994361943598663035296792179575380209580904377675277660362400774685138469299438937169550430700241710071514798922371068027331500232755601028102581220544550888850307583914792770557205945174294805468943600363773917621712811526714778882132089747635837754820940827755020073797549713795372593631952583120884582356888023695872908748604225388317683186317697101064548633530260380508198700534371972763980931691014879651877320673961784324955873709343132292760614397861682664437129955305048180316052910432186028943835766943916291603291661337207770095128775875191676865468487081028323387931681180985629675192780134114774593766395135892428100912515842252618613020648045352476677912789960463810564904329826946124210463896512942725331774182696015551993677723368513905400204325445399896900950981680698357920128490373617200705749154099925543917405391406784243109879052556456328950724211842483237218471314408801491107535871978209615817610377854628413556362905026864732407384320788449631542132603071014537950797945757979356974428617166296237702485476644549511445342480850579674647010200751789914706024248086605696070167170043800173929713735746680675134632856388448819129961328378903037224928613195624468074600979248688515170113813511182120825763293508144180511417174674835382570483616297516427898621170969791378005147960231876186287567884838689767147153335613953389808100454981303294662747842241801770038282258294476345355880259484111490496664565003025863954450578983564298283110737373753653963844711554847028170506491540071808811538889084656127497137831839907428850707708890699613818384209288496214881626589688934662803946843687151276352184873879418043775536607963498795654639481480167075218117151145485288178553924964772529054164339895818593565770774809657917505803790777792160640536068975613445492289507756344565638118444431596765615908385760741594354059677468744058441077292623005103675398139644259651283949871278356451602602841225560367143731323004740875632321844897601377123713699260824848494100154552885027260552986268953612912862031625944519389096173821460819342274921207580475667796266883749982421251799248147014234537197756556297346493668243286653868959458073860796203065097214842164113435593462231393396124991683900390516381917022507564581079288264421424784047310909917416712671068533008245221682133235150756285389270923725919119805044711692451727212901398447086533690372611505505793278298866057819990716515523494437983540717680687082188375052190805047411434468875958276817898411972112100116604514288594829939864100954679617726876564248369317497200275906198794278008207875487338762342080374538118790651984508567356708097604731269531742173591797349656903986616939562604193294070795439581605841017988549313963377852768618324241469739448660191439005906024844337785776445450859307350083860408041654767700729679177497998000590414570873282325418544333334095135701030142049739055794149462149022517573762501300651212147584836979088107237213630322100745754390276436846174451633273401850294634531665074105064787196382326392487593044754230229918223677148837617801863866499773676520827339535722298377002948407933147970355179672523168541969959158060510277144008910874798129391450512498402365380224191480181602778463896851136701515686757614402669103164908914266964532308365738155020863838888128978995202868239948307319927747930288210442736736611209755325697339392092149422297294257521915291957974866059100008504285809084556098580607803996468517923848198923295023307389695046912395234751290045631977869674063531618010867887115050835081424603884004923191224076142189149801584899132795191690561135161864509490170070546994057194720799250180428774716605808164018816550008793821155844343506551249284157087889620292057859699202679619850641583087449218286745681271466086453949480438712939783361320966865819106371508690335641063204926815294808679567985623240143170157727288446774586343250942195778627876734282819140516345905134385453859333622642633573628970632609384800091308461231635271334263302270852592499796861497798102421558152358973405195234078883382455538096249761621935987452584985941010605489242209272188783541779328936570521757491750911294697956316179075879577717733357251109553714035635427860338857151720088189162979825880685146822455219795580462327632613
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 4,479-digit prime (285 intermediate primes).

Certified number4,479-digit prime
Certificatedownload
Certificate chainshow step 5 of 285

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008805742287 --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":1100000008805742287},"decimal":true,"detail":2}}'