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 #1100000009051052221 678 digits created 2026-08-06

Value

103663776211197375749857146590512544364073683577429225776901497406272905395618540296874522399807120795325863205283229256971087692703926375816708185506508254674034707455098638292774912099074937640433484047561299430601902077925743683722728032576111109855543452989098879873478165338208375932937908399657946272161849675156385302038206777342467450210852020780948501462350363628623148196248752467028538556804775461000980747756266038919416015593028382659805307732717003922006743419022262369961353829541553454301273522618291377556631450507563244474191502457060033508991058034129804834440871358586649158276201398655890605453799323215146739133700533222725555927229450762484028903328774007
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 76 of the certificate chain of a 1,552-digit prime (122 intermediate primes).

Certified number1,552-digit prime
Certificatedownload
Certificate chainshow step 76 of 122

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051052221 --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":1100000009051052221},"decimal":true,"detail":2}}'