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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 #1100000008676651493 1,298 digits created 2026-03-10

Value

15937678378443739672395294182214045451684176364139549484304607623240528226811525641275507072807587393288447155471132172357738534099210061306780712832554216079780175657806464576435164374965210281274119525916234202989149710295688349748816959173944638445178967735100997349691596145796002834836296711584242408791428193319149868816057932987240469903413914438175128017267324830218614720408549229440586782662909186300780304139810734946516885031203815941794376161891911961811347969436836351633431451039836223363444199394638129256643807843299515867844128880566397229496079597637598880392046024092956406985143617143604673893631599200087550053733406098556397620663181929684161507866387667427568455734469529287882678427664885410104393279651676961835128844989645276546008304873326367025425781702290892899519380238050929657733168754211723005297653191019029796377278777655580485052485656095310030196319068078486891524479827164618763015383357463084613600031399836381557057704434497006690780350501905760651744952505936576696556425325020916374513502936583141836110375334118594163175550416854305407001962223360531563670067611902297972791801254993056055312735153659332125199955254645598478138308941647243308634950194475475550065118044921819828302784617315633382400732755209345625338363670321745999736612920730144812517
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 129 of the certificate chain of a 2,930-digit prime (225 intermediate primes).

Certified number2,930-digit prime
Certificatedownload
Certificate chainshow step 129 of 225

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676651493 --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":1100000008676651493},"decimal":true,"detail":2}}'