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 #1100000009037426211 309 digits created 2026-08-02

Value

247248723381157098312513695889838951423942808768493850758005597331258383218938617350718719557097121489125553918110378522623911413489534348325314613393868397099795988790391505188928613208205895010565247873541582116672162188108721137687145815420202762305733345596038171002539310889409152613738971831339094859343
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 74 of the certificate chain of a 1,245-digit prime (96 intermediate primes).

Certified number1,245-digit prime
Certificatedownload
Certificate chainshow step 74 of 96

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009037426211 --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":1100000009037426211},"decimal":true,"detail":2}}'