PRP · Probable prime
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.
Is factor of
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '7906043445595224338600916249324849825854940162219365884094480506503794089156784327920632280373183342042980030903964708332234013365049692885382227228163742814062078346085102898209068324542273667062412434484163307473262261491875954560694902492051779429716265161866118908555330516735724810013792522401271' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"7906043445595224338600916249324849825854940162219365884094480506503794089156784327920632280373183342042980030903964708332234013365049692885382227228163742814062078346085102898209068324542273667062412434484163307473262261491875954560694902492051779429716265161866118908555330516735724810013792522401271"},"decimal":false,"detail":2}}'