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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 #1100000009088758011 976 digits created 2026-08-16

Value

2115583529951575716853481681481397673758390022806464284122976343004446381300709338973797583720361026953072049533927445970428012895766999547440118500515996438421251855257524348267634301794315109281625294144053200037124238950540847744721053786265299342274389729477312963469898432354770235009472885336464906064936463155887258452653569197729543377009289733053229113324531752277838256782863205245495724152605583375544243862529384409012234878916932607012963304149961750341458206531660007736756770717923970363810642293772015207153556801290648780754072680178899923629854483561606597016209202037364924336724533535117019792322882789275584715341547728156259863199849018855531921240067058123284742957543154716766828583203346647870244013356835971324908173476788535415958716235335770485535121188450336337765366824089281698041269423275813277747634124039872535631702444257008192243928181991132725938065068773334966534577800566189911354622064047166173827260774839674358424851128957537852076501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 86 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088758011 --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":1100000009088758011},"decimal":true,"detail":2}}'