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 '2124363553236025992342339419753596767748134556706588746765332096782438071916297514513116185309759536930069457861494843178491238962566614066449577902580983592454323794442724884235846802045478199907241075707453119550338479374141988508373932668728940061983535887741749376957480132552136392037871008468699' --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":"2124363553236025992342339419753596767748134556706588746765332096782438071916297514513116185309759536930069457861494843178491238962566614066449577902580983592454323794442724884235846802045478199907241075707453119550338479374141988508373932668728940061983535887741749376957480132552136392037871008468699"},"decimal":false,"detail":2}}'