factordbrpc · fdb
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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 #1100000009043400543 1,043 digits created 2026-08-03

Value

27857373050546439868145915341842747635472021420207559485359318603651403518101676443816457368925162392636105688597697483971013541697407970720636370919758203565931744312274981170083533445341775252107447525326653628634053664304651125065222269736924561326802554409372820748202599683546439470538972329201528763995492266518130714013281512192259809237639408323941571993913847519024283825960490369071984895282417551125696231657012561242598838468645065521579692181786136389181457824444902738993500099262315212932920565697707148604466800572353025246685975879968280252485784759008474307378918003972500048207958765120989323070433008531862122603619839430536746092523910055845451114577706334776600928498267738465594322311630541244514694506143203892433358998308790092993960619863537723117633715942639891821151133538426947068581554488672450394484107826888434247182591288476594267513476851001805605746738995915549820967158168872743440459317670820487955878945228100332296739041100547705126887446685699350849503682860391043882708915194953442963568927447882963349
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 1,359-digit prime (108 intermediate primes).

Certified number1,359-digit prime
Certificatedownload
Certificate chainshow step 29 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043400543 --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":1100000009043400543},"decimal":true,"detail":2}}'