There is a rectangular iron sheet, 96 cm long and 80 cm wide. If you want to cut it into a square of the same size without any surplus, what is the longest side length of this square in centimeters?
有一块长方形铁皮，长96厘米，宽80厘米．要把它剪成同样大小的正方形，而没有剩余，这种正方形的边长最长是多少厘米．
<gadget id="calculator">2 * 2 * 2 * 2</gadget>
<output>16</output>

<result>16</result>