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 #1100000009040950261 1,043 digits created 2026-08-03

Value

12568555095840837906389588008799572624764392755042444289834574103039501708600028984955699799046306892598367952456434787634331783952721271936201862103634260299591460750559137397716700258782045993452872972418764876180568764006290957085570674899206234870136272176973494402569686919654056349624672177164240152963108964252810865175810925381236324929711501313070876727270284622386258308498269760244602289298372328751267809485140938625019613640680006596877511180860801450418520631467346576494936379713837718111520304548919779952154497367586351465975023546933731299920447353378736649419348402901854136120528321799662876601005982566633016136680893350533504205562462281166890024101931428504358099208873679803514092833102161167216727466448873465448520736099364737356554040467932053513972115815845211839314645710499200112490586322644723339691447121854756792238145511473266703225842144420830087593876827809618400174761832934883057357143183777967716181187112033524677566062794922107769689048744096432431935272356199966455154080260781172471422010404497088909
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,289-digit prime (107 intermediate primes).

Certified number1,289-digit prime
Certificatedownload
Certificate chainshow step 21 of 107

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040950261 --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":1100000009040950261},"decimal":true,"detail":2}}'