RosettaCodeData/Task/Factorial/Delphi/factorial-2.delphi

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2013-04-10 21:29:02 -07:00
program Factorial2;
{$APPTYPE CONSOLE}
function FactorialRecursive(aNumber: Integer): Int64;
begin
if aNumber < 1 then
Result := 1
else
Result := aNumber * FactorialRecursive(aNumber - 1);
end;
begin
Writeln('5! = ', FactorialRecursive(5));
end.