The floor of the living room should be covered with square floor tiles whose side length is an integral decimeter (the floor tiles used must be a whole piece). The length of the living room is 60 decimeters and the width is 50 decimeters. What is the maximum side length of the floor tile to be selected?
要用边长是整分米的正方形地砖把客厅的地面铺满(使用的地砖必须都是整块的)，客厅的长是60分米，宽是50分米．要选择的地砖边长最大是多少分米？
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>