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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 #1100000009058004568 2,198 digits created 2026-08-08

Value

18672005327182984636194091490935668877854245594684801373865645470256749713436653223257891039460478037993455267122691266477286493038574780238241242812622956663224466412258393621880955700442096331968674310278924084367217685487541562660732390497006403278650417396643599225956497802574772952107363868166595976463036246560304907934605929222908909617542353818579800573268081401831457863771950020752269970917848258885417313611838931766629751796057556038811668173885393444514035741133902959514180526110960985948953225334111967083909748023438174619045451351197752941562069891334019857205001146921153036522240051742483833703430911045433276352380839049224031489120065172538025201412502063789169856161055536203433362358562189943048892582340576633599448119235749231576005062518352837512648457822530396689745683680212641736094821667268472203947441765839540931495224228278230490967601905412891139000929029550468838428752256158097733487179658568866115043506211620674581466269384938375850234420761710473803819197115147968225698058805291558296424965445639850586835337777447558455866042644228687676305463255362679772690741243811267904824706661309643569571204164834028325539509297749679890360946419556979375491870725188655895682895576798022602100142183814894936771723758329193875812234437204488190488905275553716565678402068545452205732245252701659516821541925278659208833964934549943461650173745970881031694598254291027381026523550530580542522422857963071577034588515816846548460046020804123390424269014827560449051562640782006388230285711281438821313759096875690490798167222169384550521477233022215177002357865906202888726103610688778755418743250020337932903225852332910017285259365610875667403786630876892921093260844934477455547000898078658897752457841183627469070622596083603083979011540875538996067256402578878020982879233579370644303124327845951602911592242641912830502259816198225892597403093478257387160635670847831349322056877555361646949271208957746593893755324654641619111407553071501617657721697514852891692975434496100454366393530664665324215110792090205381718960036329166209076057807189933453178995887391185689343846070253190777365408642917189489431308416695664771000645551734335456203783739189638570361
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,255-digit prime (166 intermediate primes).

Certified number2,255-digit prime
Certificatedownload
Certificate chainshow step 4 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058004568 --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":1100000009058004568},"decimal":true,"detail":2}}'