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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 #1100000009127304398 2,350 digits created 2026-09-01

Value

4190257708420500113877676195650242843369692760284468845650883933412278370329260659970118100297301805142981401152831227547124107040996040919434051388592884383688049855014024276952644769326033951963983660635179976240359994773522133401832417531914456199715479056859419280427157810570300134052316639039196679246210530455035628049449347186502896783460911831710411701058077510707865425706907510238463244919509272184020795903595599252729916400097647978891756071393788322663761342943340154614124053427206729528270453532012838039119495635132387976136529029072075218150093472748395081686590566930285434619159415487206809908138604508170381394507586295359128655795325431909080137279494382973531653175583655073375811031086377581516986570768506292158087372654243228320401574925371353188908281980763676018581576602478648126291052886086101943197672163188038960765115525978981361524601029019061513856232471044043573445431775830110296854485248288234380038990449046182323385247845461278191659282990120873485043026779835986753152407803526781443309007935159045338736015537342225436331420187494466937021507942972490041070986656089496973300179297067577020570027394202705520859699307106057124203558985622154150056445164620804289694710570632050761892971396660677669612147216559039108170034949505707022809378499298437366114684458751851037823093535369806666203183072269920254306472148643180803230127461863001027994054180850977633063744506547536288643904012648438180368003680762201584341675994047264532379173769568916444389459156441568966762700645039963190975822820589295123793655778377269701151203883773444497570897069289680096193740757236597090285388870333538558956980833904196739653155873720864247465445723863949306739393703411601866529657312889490195797038206015067511298971654184003099381392135370896435680994559781581136472747010282446245090228518731782934428865456988637572400652591623959325069420531426777664449259678801150362188074279787359039174515501015573467476651508967139146837038134263768428239728298546339235931649757274389100658978384303409996317348697393562363610490044316404752175066354695493733167261390723023580201032889091224267507987950043674077544731660947851960532863385993644864412921994625135346009132574252107985137398086664522490452185833571563701468599083581725717158699723459532659746562420223515550823419509396629415767948086164686301313239506807
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 78 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 78 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127304398 --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":1100000009127304398},"decimal":true,"detail":2}}'