The school needs to build a brick wall with a length of 24 meters, a thickness of 0.25 meters and a height of 4 meters, if 520 bricks are used per cubic meter. How many bricks are needed in total?
学校要砌一道长24米，厚0.25米，高4米的砖墙，如果每立方米用砖520块．一共需要多少块砖？
<gadget id="calculator">520 * 24 * 0.25 * 4</gadget>
<output>12_480</output>

<result>12_480</result>