Working with a 12 digit number?

[nobodyknowsme]

SoI want to find the prime factors of a number. It all works apart from the fact that I can't enter a number 12 digits long. Any ideas on how I would do this?

[rvk]

The maximum of an INT64 is 9,223,372,036,854,775,807. (19 numbers) Wouldn't that be enough?

How are you inputting these values?

[nobodyknowsme]

I tried Int64 and it would'nt work. Don;t think my program could handle it.

[rvk]

That's why I asked how you where inputting these numbers.
Int64 works perfectly for these high numbers.

(inputting 123456789012345 gives 123456789012345 back)

Code: [Select]

program Project1;
var
  i: int64;
begin
  readln(i);
  writeln(i);
  readln;
end.

So I guess you need to change your program to handle int64 correctly.

[nobodyknowsme]

Oh yeah, thank you very much. I now have the prime factors of  600851475143 lol