If you want to lay square floor tiles in a rectangular kitchen with a length of 36 decimeters and a width of 24 decimeters, if you want to lay them neatly and economically, what is the longest side length of the square floor tiles? (The side length of the floor tile requires an integer number of decimeters)
要在一个长36分米，宽24分米的长方形厨房里铺正方形地砖，要想铺得既整齐又节约，正方形地砖的边长最长是多少分米？(地砖的边长要求整数分米)
<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<result>12</result>