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 '41288034192385467296168926590701324756455940050268773292961669513783719483347261682238516105358034675653326433389732273548135763876913292465606103939810844124808583691627468404711353599482219815083953733952558223168651328144458122869398190773952715092192082204966060480851168692828506686688445335621393092258768532482961655443947101427708866638356875428091368838283614487752641791566825041095838874343373041784476801575943161995716729089448746600815131057732807279148561837328850270129337741699340140629824306400866927178605624571660275033148240493678327129476553651124577188735053839397512658306692625119334985270697960066128671830714470650501123414848509384385980022243019636502205926623005566641111292164214222416301626060721041258903892085687104827638985193447688079674134443259583407129427631628087479210862613363720847355182407639203419775476665729789311426482402499340115046351359722832320088579617155087' --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":"41288034192385467296168926590701324756455940050268773292961669513783719483347261682238516105358034675653326433389732273548135763876913292465606103939810844124808583691627468404711353599482219815083953733952558223168651328144458122869398190773952715092192082204966060480851168692828506686688445335621393092258768532482961655443947101427708866638356875428091368838283614487752641791566825041095838874343373041784476801575943161995716729089448746600815131057732807279148561837328850270129337741699340140629824306400866927178605624571660275033148240493678327129476553651124577188735053839397512658306692625119334985270697960066128671830714470650501123414848509384385980022243019636502205926623005566641111292164214222416301626060721041258903892085687104827638985193447688079674134443259583407129427631628087479210862613363720847355182407639203419775476665729789311426482402499340115046351359722832320088579617155087"},"decimal":false,"detail":2}}'