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 '725273014847018719373470643896809855639970529049797338126315837820169144126938880721659642794316291520076087701545738845621740067818958294242665584052425232601758164613988885609078039013343110108341415910091427809102952671175507345744961042358062678903802830144519054158895346449985029511766480506722448392048556788814803926349639553509068576733135812794336452815062636645214536566673058812259950714579833459331584389841438866783964583339670399480954591558185515903766104852500869342964928212475704907433290245961101401777516405077667386842259356294286655918130581587014040685036159608441903636765467886566019452806757420301002872725366329950879694501240148771322272895108325856956630034843595958963911124549866954610403486803543111153' --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":"725273014847018719373470643896809855639970529049797338126315837820169144126938880721659642794316291520076087701545738845621740067818958294242665584052425232601758164613988885609078039013343110108341415910091427809102952671175507345744961042358062678903802830144519054158895346449985029511766480506722448392048556788814803926349639553509068576733135812794336452815062636645214536566673058812259950714579833459331584389841438866783964583339670399480954591558185515903766104852500869342964928212475704907433290245961101401777516405077667386842259356294286655918130581587014040685036159608441903636765467886566019452806757420301002872725366329950879694501240148771322272895108325856956630034843595958963911124549866954610403486803543111153"},"decimal":false,"detail":2}}'