Ectara's right. Removing the poorly thought out suggestion.

You could also check the width and height to see if they're multiples of 16 and 9 respectively such as:

if( ((Mode.Width % 16) == 0) && ((Mode.Height % 9) == 0))
{
	 std::cout << "Video Mode " << i << ":	Width: " << Mode.Width
		    <<"	Height: " << Mode.Height << "	Bpp: " << Mode.BitsPerPixel
		    << std::endl;
}