It takes 1600 bricks to pave a square floor with square bricks with a side length of 15 cm. If the square bricks with a side length of 24 cm are used instead, how many bricks are needed?
用边长为15厘米的方砖铺一块正方形地面需砖1600块，如果改用边长是24厘米的方砖来铺，需要多少块砖？
<gadget id="calculator">15 * 15 * 1_600</gadget>
<output>360_000</output>

<gadget id="calculator">24 * 24</gadget>
<output>576</output>

<gadget id="calculator">360_000 / 576</gadget>
<output>625</output>

<result>625</result>