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 #1100000009053655721 457 digits created 2026-08-07

Value

3620598824068236387003622223708126265649413116494194175171020256517793150941523527846289392979813506471425862320273762260645836731634764214972424221727001798463973683608852792556343646114123768898244817942860419401615448933316981101206762368777753151500824599926558256002672431964324375602771365504241963578307488656748049764554802271310724065884164960215406444984848037389670828666406584891423476247477575355607475731922146528320800307971936592411643521283
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 140 of the certificate chain of a 2,205-digit prime (169 intermediate primes).

Certified number2,205-digit prime
Certificatedownload
Certificate chainshow step 140 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053655721 --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":1100000009053655721},"decimal":true,"detail":2}}'