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 #1100000009018820219 350 digits created 2026-07-29

Value

25879906546795926596593299675493185520831901687920802314189286949947146744789185047686739352214804697676791047618228851811200915785485310770258538127180315257892086549318181952184276847153365158036162799961805383823637205708846122932843444734406107460671532313606544239711367151560303445799196957557999462334532584168759982180231941855725224444230817
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 1,025-digit prime (87 intermediate primes).

Certified number1,025-digit prime
Certificatedownload
Certificate chainshow step 60 of 87

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018820219 --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":1100000009018820219},"decimal":true,"detail":2}}'