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 #1100000009018491247 346 digits created 2026-07-29

Value

1388417391124347773115493610622441130099319165325506765837994990127816366849396744402044174994680174723837753547624387408629744437446314695491928158452299882154426204085133656995155808579575015798742353028632967013917794150251749988165520847143786621173515525582274456690074504154149979716203350633243959650290617533263743810428369095168217779001
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 46 of the certificate chain of a 1,038-digit prime (65 intermediate primes).

Certified number1,038-digit prime
Certificatedownload
Certificate chainshow step 46 of 65

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018491247 --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":1100000009018491247},"decimal":true,"detail":2}}'