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 #1100000009075279747 823 digits created 2026-08-11

Value

4448239297897393212547084475020019366527326068397159007235083894757774583451174258862367101001494878084456852004045416663830241468938615059205741362307234691034098268680179675385786586491440590995873878072094983642462164415034724113589533852780436155505053277971689835059824978212558817190731583528054219305870600515561464321305136416402290471478592527270049907987509974206353327342603406679445854345087907435469474173095053058676081077580823443186438953763688880243494995304317595231445788681156450351607846452934498987718578761504177657224189053084325986891979110058964547536174935391969303317217651172895106429785110169371501214266649679207494972829572925823167093299048807840625201537456682550531874314336043250446257441251536594070450861241251864112800001952478078442677339941783361680610052410221304994306551247153517
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 148 of the certificate chain of a 2,656-digit prime (204 intermediate primes).

Certified number2,656-digit prime
Certificatedownload
Certificate chainshow step 148 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075279747 --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":1100000009075279747},"decimal":true,"detail":2}}'