Uncle Lin’s house is going to build a brick wall with a length of 15m, a width of 3dm, and a height of 2m. If 530 bricks are used per cubic meter, how many bricks should Uncle Lin prepare at least?
林伯伯家准备砌一道长15m，宽3dm，高2m的砖墙，如果每立方米用砖530块，林伯伯至少准备多少块砖？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">15 * (3/10) * 2 * 530</gadget>
<output>4_770</output>

<result>4_770</result>