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 #1100000009079970372 599 digits created 2026-08-12

Value

12876111207090047545234513314329162801671456512873113073961944023392444944321519402901060351050549295398187900208714481786452111290374298275975044312564623540011113919396146991243627065549955854050916879935987812614244475305210713640205252724430565548135690656107341925511661910936556660809214353702612475618821746439572639415325676004780939931652107535893407551416775361925133085865831169481315840315993147651264277208595184779864834453071217549348577018525784252595523943082880872517726374172884065751403666978004807380111394916422690068568195840560169843763013110501597549903153502334561803518481
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 119 of the certificate chain of a 2,167-digit prime (155 intermediate primes).

Certified number2,167-digit prime
Certificatedownload
Certificate chainshow step 119 of 155

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079970372 --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":1100000009079970372},"decimal":true,"detail":2}}'