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 #1100000009042288205 398 digits created 2026-08-03

Value

15919899630960382703994490330637700224821764627657365313172229320490287589700265175282707278067804724382601893145112557260645237604789433901568294613843822905107528920271711924534441445088980787207376738563264930924670364159032315990457220579875846458805021078100758549486328174559415676096736242631399316710397186713597271380313931461462185330490462574038960096765433079493673482894243559891385113
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 90 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 90 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042288205 --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":1100000009042288205},"decimal":true,"detail":2}}'