It is known that 1 cubic meter of training wall will be built with 270 bricks. To build a training wall with a length of 9 meters, a width of 0.36 meters and a height of 15 meters, how many bricks should be used at least?
已知1立方米的训练墙要用270块砖砌成．砌一堵长9米、宽0.36米、高15米的训练墙，最少要用砖多少块？
<gadget id="calculator">9 * 0.36 * 15</gadget>
<output>48.6</output>

<gadget id="calculator">48.6 * 270</gadget>
<output>13_122</output>

<result>13_122</result>