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 '122685342026436876223889856684719584475661586385705685733700447196561272847677933455559769582414260776351547434289399350221848941386559246153582485256350203659787926314676298829589178983638651667458234579368693137605628995849380210599869738010098755238743415393466134853582879756171042602883609100397476074648016092088402049385018587267075608234071477440397864967816175934159739550180132013211233918672039568191105008195224939929565328693002335719049292325558975258393980844930097692573463619748097734476061610263272631201865501998673489637115841491737314118632169270903' --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":"122685342026436876223889856684719584475661586385705685733700447196561272847677933455559769582414260776351547434289399350221848941386559246153582485256350203659787926314676298829589178983638651667458234579368693137605628995849380210599869738010098755238743415393466134853582879756171042602883609100397476074648016092088402049385018587267075608234071477440397864967816175934159739550180132013211233918672039568191105008195224939929565328693002335719049292325558975258393980844930097692573463619748097734476061610263272631201865501998673489637115841491737314118632169270903"},"decimal":false,"detail":2}}'