SysUtils;

{$APPTYPE CONSOLE}
// the start of the function
Function Prime














// the begging of thine main program

var
num : integer;



begin
writeln(' Enter a number from 1 to 1000 and push enter ');
readln(num);




end.

this is the entire code i have found in your file! what i think? well, you made an console application which is showing a text on screen, and read an integer from keyboard.

in that file it is explained very well which is the mecanism of finding a prime number! you don't know how to implement the procedure/function or what?

best regards,