For a rectangular living room floor tile with a length of 30dm and a width of 24dm, how many square floor tiles with a maximum side length of dm can be paved to be tidy and economical?
一长为30dm宽为24dm的长方形客厅铺地砖，最大可以铺边长为多少dm的正方形地砖才能铺得既整齐又节约？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>