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 #1100000008859757021 555 digits created 2026-06-10

Value

242056056017365466346131057526656642082890138610265444030066858041941133789975809318670640645647112724868601949040799252799828059088929269855681082509897693199190659843864431640253432046241434739463181835109089678546498146105624493758397845070008326907721160071262708217019257355157804037969276333433533071283773233997496383919303725421840691313861029026131341045854044124353420637951576555974168182020519549425250740117177878397154531337654227597300549270103869580422030227714467800793415105363205900952033294464121142072776911612910899965254071206747233
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 195 of the certificate chain of a 3,239-digit prime (226 intermediate primes).

Certified number3,239-digit prime
Certificatedownload
Certificate chainshow step 195 of 226

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008859757021 --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":1100000008859757021},"decimal":true,"detail":2}}'