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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 #1100000009053828809 1,815 digits created 2026-08-07

Value

211036389963987754517171065212756379509110711040636546346063150973186936308688408224229057902352425489333272207496739507501590634075580697994015478571720986268572026936218872045690119665895516322293995752681540976014407662996430352184178243054566553212836017769046235664539561664651965966080090846517915462860535401254824158537686630497704123243153052440792678229784351148094015908410250570705306495955105559686251500733083462594352201564918420234441299032505765378103520335493330768027464640531985350098213612233050799123401409986077273286461767538053912782778132217722070122629925223544356252598949307675915934285402273226264186778710945256215788283511213031127327832858286088375367156414644354725611706634830038399982806187245171239767852284081462390484082636286521756976565799545178060603719531073309014461167094595221909904873070887875100767526126228688162497695387880124951802617522630328136096741032490086001231967573437292224875668067630968038005184381172201622030281648417251235916659323517022133018398944881689037958228166445488923856403185832347099711546870424565098405184637658129022500330978627669894140932027124864404547604497240020295640391689440270544309575544465035343070634512581290711177172915784309582007055741761722587541061383042335599161852082994946851491306856041647220185722678264688885834393161141725766262300318927110050099197352572596712459702360867993922393607424759258868528412426299837260602906610692246066304769922919608636494702795676887975928404009161602881564719715255455784864655237657575138960056017776426767482842606678361574466810272222259061468367106877974182667975392673586479666265285931126714884782634264999151694061127731769313047835238973966683828679995025888043598441907583529416799366843048512378039342458681165381360899798559595824481904140261903154314604299282736837
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 64 of the certificate chain of a 2,577-digit prime (194 intermediate primes).

Certified number2,577-digit prime
Certificatedownload
Certificate chainshow step 64 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053828809 --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":1100000009053828809},"decimal":true,"detail":2}}'