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 '340140636529365432756169671712472145785463812653928775586828127854434198953338538963927397466850649909844064990543866525777499820083795086717517583123184713619246123481368659118588910434509859383884989450074279913119669797578153946535118709563317135646777511553992870859495938055855928124429048416742963128394125329077972102454780405863520497256922785721255930724282734445296227931976318406749' --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":"340140636529365432756169671712472145785463812653928775586828127854434198953338538963927397466850649909844064990543866525777499820083795086717517583123184713619246123481368659118588910434509859383884989450074279913119669797578153946535118709563317135646777511553992870859495938055855928124429048416742963128394125329077972102454780405863520497256922785721255930724282734445296227931976318406749"},"decimal":false,"detail":2}}'