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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 #1100000009053681211 1,814 digits created 2026-08-07

Value

19930364757062522960805655599164062371939749962051659702737511444027234570754552607634569935842284834147931660895030326848746604521826202814958707582194458748482295357594467486470691095846384753166649023467942183393769222928880930652559353936251018679983906511401792700195838406545040832493903153160926744566261724289569725689616586436857558536600193847232516101925182114306478880236908280846748227072555230999650722517538890421392924316408784112697184293590367544462248380128025374965351983915298242168714201938928897476521014017461731701768287014074814969523380401568947427725725076062492593754745178600253455106416338380062981835933052547938209065922418665367168098096995276425514756671689481799244302184715326416888649910989037890932540338205854810665754090667190558569698085758703059628866924847498663728152904672539468827026647863012635088328873593420802149352491186618477780590626847235564249718659235978010742732456721065698617594544707927840048597809754966584232171599964463596371706096904453003610281042396637190654794116448892541254248168817686766824830106614086496989916508083606780742073609650804035837325277933554825275946842923379556143521696275392006673851754830321128510402408859512360548522791557689099452830509314294959110816411709491516757587624271229418422400229921554295405050776086886041610720818811734739286883508875358893293342433952186656267652652938262151366604339449393558702039731755786600528420971250487162057816169983606685689805034890091106451624911004185781825972160934102713378159019847470960734435800512427083113329640780690616959619183381083198690957703937589145174837152173633596026683560300131021953748841255725432282608657255732583512899733325872056882523984878138436532365196313198133977044740420747490423489661732838324732705739013544938447823311771747742515900541818185153
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 2,507-digit prime (192 intermediate primes).

Certified number2,507-digit prime
Certificatedownload
Certificate chainshow step 54 of 192

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053681211 --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":1100000009053681211},"decimal":true,"detail":2}}'