This rotation of the planet gears can in turn drive the ring gear (not depicted in diagram), in a corresponding ratio. If the ring gear has "N" teeth, then the ring will rotate by "N"/"N" turns for each turn of the planet gears. For instance, if the ring gear has 64 teeth, and the planets 16, one clockwise turn of a planet gear results in 16/64, or 1/4 clockwise turns of the ring gear. Extending this case from the one above: