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 '7470858748977801448624442363924074015301502769323350843071173572840813441940681178018403411459665010191237394369893928892442174967090260157000817076756333876392764730831708199486810968223214517428508284904793558262418744513835195194304549891634328644611965173295069283276315252672516005094294727423227706297249461655633890493383207376014701046720922131797570331928596292956685118561511021723555044161452970283185712285309175053369288839024404869384211567426810985363202620399041404029439703867289438126543389904970007172467288484723298718464555582977678801827469578061780394105943366079682285409128141263568582103174257825071059472240713279973790346498987526838979040799272579328509434522165061368883101994343061380694893869481387733971866851810838818782318962010948108168131068401036450146540186023292485968623701865516007753700768450878775068423877228416375280276063796315909' --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":"7470858748977801448624442363924074015301502769323350843071173572840813441940681178018403411459665010191237394369893928892442174967090260157000817076756333876392764730831708199486810968223214517428508284904793558262418744513835195194304549891634328644611965173295069283276315252672516005094294727423227706297249461655633890493383207376014701046720922131797570331928596292956685118561511021723555044161452970283185712285309175053369288839024404869384211567426810985363202620399041404029439703867289438126543389904970007172467288484723298718464555582977678801827469578061780394105943366079682285409128141263568582103174257825071059472240713279973790346498987526838979040799272579328509434522165061368883101994343061380694893869481387733971866851810838818782318962010948108168131068401036450146540186023292485968623701865516007753700768450878775068423877228416375280276063796315909"},"decimal":false,"detail":2}}'