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 #1100000009042288198 416 digits created 2026-08-03

Value

12928704205273378071356028319036009838561947481257941603104662052087623933827559287072533161846263147993167915638335475816705014105357741603730253421330885656287573321112218977430189914687401639838481102957268598046553940073695403048037210483024893836647090774352342201875361771403888555318429766319908441179773095501061570852675202498764967481610045614260379444647564793912232406104977725247738801721908694714127613
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 88 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 88 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042288198 --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":1100000009042288198},"decimal":true,"detail":2}}'