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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 #1100000009091095255 1,131 digits created 2026-08-17

Value

194801315946673094506981013190427480884989131924076714641448597629627618304261009852148419372307011041542191959290021153234566713814905197915716677741956798812767962827867303959391944046281267237404985186117499413153519337219742749961771081321709810662839831658569625338189503937138050599407152278581180451496991976657649847844352224340571944594973527162777699216947711402809688486642629547451305592281444696563978075429481792463105652893555891826659849094640634881625658990566679721907341697766581603527471940003761942127969929525046013324036188933484239718511345375318086344324775129340595694700046876841211893572963304290994840896479519716033882467547104421675003533535743124474737582857760329301555693731190965000250265585500972518736051542198440191052845212912606548027863273274211504291578366731555182652859124267279722295470257943759527781842310117300076086461745718532607779060468003472494986057291647295480221259979321322588131777336604968421679365454249822981911072654891000039065153943456375035372684969775291239735042683418794721622170771947390363084856178048551342697370458596022163378700715070264686751314841577468423
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 77 of the certificate chain of a 2,085-digit prime (160 intermediate primes).

Certified number2,085-digit prime
Certificatedownload
Certificate chainshow step 77 of 160

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091095255 --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":1100000009091095255},"decimal":true,"detail":2}}'