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 '854617336834199310432357965544280014044736863694331177812652265955636906155650466942275723198114231257813590103350438817620352810287816632699873833423722884651004296387126680194689827167716458737018368729153192664147266855564685112699761490356908413449321446501253376669076403606519504620284094584415172441614082843467931077953936207546606343568932863689474062070893020196132519794046920600683496521122728870033922118671428575475972364446040550171073762801230632412582469535055364240210913827684560035230759792952613719068911981496407420744303053801264267735360274047669862793677671539503931070071557332376134495527810268229048823092128299176786627101116259764105187670753483800413096051759066761405513084948174955877949303755246401496647388222704110013858395527084978385631874631' --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":"854617336834199310432357965544280014044736863694331177812652265955636906155650466942275723198114231257813590103350438817620352810287816632699873833423722884651004296387126680194689827167716458737018368729153192664147266855564685112699761490356908413449321446501253376669076403606519504620284094584415172441614082843467931077953936207546606343568932863689474062070893020196132519794046920600683496521122728870033922118671428575475972364446040550171073762801230632412582469535055364240210913827684560035230759792952613719068911981496407420744303053801264267735360274047669862793677671539503931070071557332376134495527810268229048823092128299176786627101116259764105187670753483800413096051759066761405513084948174955877949303755246401496647388222704110013858395527084978385631874631"},"decimal":false,"detail":2}}'