A classroom needs to use square bricks with a side length of 8 decimeters to pave the floor, and it takes 89 pieces. What is the minimum floor area of this classroom?
一间教室要用边长8分米的方砖铺地，要用89块．这间教室地面面积至少是多少平方分米？
<gadget id="calculator">8 * 8 * 89</gadget>
<output>5_696</output>

<result>5_696</result>