There is a piece of rectangular paper with a length of 50cm and a width of 30cm. If it is to be cut into several squares of the same size, there will be no leftovers. What is the maximum side length of the cut square in cm?
有一张长方形纸，长50cm，宽30cm，如果要剪成若干同样大小的正方形，且没有剩余．剪出的正方形的边长最大是多少cm．
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>