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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 #1100000009117425038 2,659 digits created 2026-08-28

Value

1870294610937533190387085466051171573719638231649717444099442125131742634093293962083380031122927227697673938348805029502610948819245005924150377204574510556509945843740792374390473237475618444961634835122706024941220172776563725036477389748584483935913514622561172242316341467365673635705251407460373716887925553175062137826761612995760259415165594811370288448458996719214404883142027195099234069380914484281498537069297821889306029512031215390561170480225522419988991225005877715648810840529140527874588773190317502316240522118024275220817563169009480147174654225926295993449014832585825661696663261107330553244940827796312645504004257138011888159426487835062486051261034877083427017898664857158337399793058515220581044573892767743404773157129015294348773818237922248402212580277436782454554467545695440809106559868482458351379446976477499691777521580753337350663085625671650167914813905758179776103864526941378268402952088618701966854135087250017160571507668010240259442086013734914909262541309312641246738124490192259767247716601395677708763102369316737476879066081149563976723130084335247379362494156607020236046452646917370292459833608950233109625068717406721891533712748770064259982856773353884037254066609704536450828035226495433897916360909970547710151906420171884210029765050832797556123090955809901908257489433482231678455542336633711741112385229784462157156921694986641233872713046364961437927764462083364667088786794811288676783080765421982986608537861156401250695665341733802713919186176076887213695743072912158325875978686583391458604628813918632561558673179165642544713591870471398105680690393220624798754518109638097301517153714287100571005462198564212091231566599536423478590514778373011926737323505861923263282766479596016276256919378028447015091940562158206852482695929745904209425270059269548450794411376569523485418683554141709670586321311377985566264679700564493035828670985150472825302782617066019124258888600164330581712796464753724675786764348783338888204544548287670197409122527977546221036089641575377765787502562987025680548971432949844146156208604431312739376929386194401509714300829118023574182325022923046722018574143156857611871144812174944220664928661910603560343478722269999440007051470616747892394689271017375235616737250076026223186138691621117930798888448374648798615247914528815653224270586440450080683864404319328762798947069622204764004878178338561278509807934055771301723567536253651012161513356160283175920036078401659637534257006560976207666964977205258535299906385413066721248061602203273711582512617793802591348741162858596669629666081916416656296769120759522979683330698296708690605068562663062497699209032903091
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 3,029-digit prime (223 intermediate primes).

Certified number3,029-digit prime
Certificatedownload
Certificate chainshow step 29 of 223

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009117425038 --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":1100000009117425038},"decimal":true,"detail":2}}'