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 #1100000009090412447 639 digits created 2026-08-17

Value

194879148554426326994879917432563265350747017985124562756338353758763031848576173611448543991318286592398757589540883302216778985680221870276288308384804700662490828533730312916503524069377460833906067283005999096632840700740330415117905980909211519137941696441645388557740753796441093603694071811243895512760254049252040317794680480511427699378011211618717630444077181478921679449239842532238338836951143910973968589058187434656409351052794429793269344424177028626231495612437848829517831664257137120168297649328981213308443376616595609143323570805277269132297384936376709101683970807007423041006490245103580949879763144529882234198913267
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 110 of the certificate chain of a 2,069-digit prime (154 intermediate primes).

Certified number2,069-digit prime
Certificatedownload
Certificate chainshow step 110 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009090412447 --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":1100000009090412447},"decimal":true,"detail":2}}'