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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 #1100000009075005512 1,653 digits created 2026-08-11

Value

310865377381955056723359007340566882438916854237112318379302729550782276706374112173397223440900219789663819050509032837940700659467412427492300588493491708644320410896057344194215968425528078242619820547662111829610190156273881783526883249981963969238209623279637172753681412367719463126881603710306933178429450814183158203706391027975332482785447484070517756227220117548976189994200292032626357794904720392286237433296075294623560860567710881413173077391698321850858415970510938614850934243664532518381189764504664650032468816126046278470054820692504488278732361494074654825460989579871567416624976362657356139662468407176721855658090027147967556905674896655672996133502286928759300463062170792490506714192831531946622951539930095170060324411763066860861922157884141271690907837492256499794238990063244752771646900419107144107550225683680623191245244168138334329188269896129400566087521808776205267792633670509329971531085812859679482657966246866071235707279150881683449771925221868806560177302189395803162467056789865351410183693101556242130146917134603897347980882343494786131300014441783297978444619442273988823834659922852592416517964035470406264383772180516223931216068243813030838174257736191881523999891594519216986350790603191677437340916669081081728361852540692439881780379115513811004716637755387767751232836560118871708450949356072687482488654846860817620469210202939653389002680518001541645057729730202537324198358732137885576479683465126133221106151641217833953164014276981126402514711428017554261502008486544039793623047289758768790870741342252253808768616836162869856699248440681390080248475092011320326204778041541472615441807914114433
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 15 of the certificate chain of a 1,797-digit prime (143 intermediate primes).

Certified number1,797-digit prime
Certificatedownload
Certificate chainshow step 15 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075005512 --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":1100000009075005512},"decimal":true,"detail":2}}'