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 #1100000009040261205 517 digits created 2026-08-02

Value

1281096489240693524711440782519915725576176467028667756340692973793503444382116340092815699032018735047780867641255452609627905189159407522629998620531266706383655881206563215184696778215133143342550052466622772263211736046142642293732451231128208031088460019411308142378749843148841259382795354538133417577356078957967838970281082951754010294855533496744033274606656848197144896647952381775519131185679621620363069505314523280350358965324315724130674051207047948495353730960983214674302548704917473024607375839382907
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 69 of the certificate chain of a 1,260-digit prime (110 intermediate primes).

Certified number1,260-digit prime
Certificatedownload
Certificate chainshow step 69 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040261205 --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":1100000009040261205},"decimal":true,"detail":2}}'