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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 #1100000009075638090 2,450 digits created 2026-08-11

Value

18247290787458202272239810959718712572243897621707539277068330233226219842740655547605014196221177619030737785786419666802400949752839820632412212604598456547496045266001694068601814097128977437256574489857215543595211570755789052511069394033767273648211643622854556301359808751773860931520380619326809470889305750174875247232795200069218912763523207856606153462087767600074546138140299335191198307484367850012197524124544934509785603994552713655198836127969076063511364020901635232949936389460381974871892940774237213384801646679043799033140804926050484216757071708047452995588563750656689239011391050483154927504712470317071077939132581794692942501959436544233158369123857580801659478798943717531783909901244918593583575528402701913999989436717331439412391922928463508231316277196454546329278569104967956438290980014582138310561537033543822670336274941975990618789861662939464822128228821312716958484056160497831961199258451587041466551695385900696696857192959638379377673976814258141654440033085184418193322378806519864993371395749909112888141535804850175527530032917406000097736562078649453033289812537012475328860585509249631489624794124901799588557169677552675559320454968626816446213295899420605943982517716663539140128104185756371768085558513052365354874984473782843573938940589290869483698393330511305527424538700267454343494759939188327627121524483291082301284935314755142938524748776832147748521282557018151467276759860487649874464027200631955599150565895959219701290779030336961086635479649181908845956527993274448841663007342186329400616974076849316393529634008049899505444755650280081883808958950505529828920779555628549442775336114876596371866848988229108114693902610757531179284315376965837649357302909882555765033898147649839418399298854487465987992109674623968846240298107867414946169090696031881826613176892343414739527382276012406432881818930225064399894708145518052683089041314142920972381059364424952700802186799270280832022501162589255473512291384435873959734941324341155272996952913987313543570473544704233525956232648037824209451892780274013144617196729931002758029611417015887778303161707667370273411113850463449345502601610018524350733792816441789678032940997118242962992845484680805260424015556041908947063447267129022446471993814289941801980611681123754889146236946164557477562423463256414501559420008373929829385529725392950271113479184793874402984192676673695442241460803617805334520273384373424306800331873416251782827
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 2,941-digit prime (216 intermediate primes).

Certified number2,941-digit prime
Certificatedownload
Certificate chainshow step 40 of 216

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075638090 --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":1100000009075638090},"decimal":true,"detail":2}}'