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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 #1100000009058402585 1,455 digits created 2026-08-09

Value

294041827929950321030931192015045850879165260309708296801590778933592685215027087561023225689652080641834675173813588995230708989216604105944769237972868951118893836660785330655007020802795942790454241830424339942801598695654783815045174898898637442690333817210773938788634438930664027543945190277080963202709348453730698737325307041364648799951856767709157667734503613652215919552491521486311403600419577779165513434710887764462305494502739091408257027873075994916943866987526811587538014608892147267047679372426989130293476047246219986882882352289747935567501962846426128244389354946233588302448461899453175235599690344338668721767207405328726093328568281802919135724761983649663224147944047702393655350019208558129124041665162688705191926674806821427979773226609808441640110511489329515389208650068986980268667590000303471157493821182552059104589899072093560838432202927791760135938224339950049898246936246729248810942986739694364281967085249653493242640632850689922661783901312787056413903536426478482745075829258127019160723438141315742965327024252727537950528894398252788345773113563149679349356393721425362512055720686450054853579591427055282286447150800703996712973364431945752604428400935444785885850124798397560415656171844334884477266724485823057512772693175411389669303315463419527285707227253986317984575441344394217386727047660701261958731679753291779288544031752592876788812036833081617284716724092697060335410403092491464937102407790428571
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 1,683-digit prime (129 intermediate primes).

Certified number1,683-digit prime
Certificatedownload
Certificate chainshow step 20 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058402585 --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":1100000009058402585},"decimal":true,"detail":2}}'