The algorithm at the centre of his method first checks whether the number in question is a perfect square, cube, or other power of a smaller number.

ECONOMIST: Number theory

The extremely square styling of the car was the most distinguishing feature of the Scion brand when it debuted, but over the last few years a number of competitors finally have copied the idea including Nissan, with Cube, and Kia, with Soul.

FORBES: Bringing Up Scion, Toyota Overhauls Brand and Products