Use cubes with a side length of 1 cm to form a large cube, at least how many pieces of such cubes should be used
用棱长为1厘米的正方体木块拼成一个大正方体，至少要用这样的正方体木块多少块
<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<result>8</result>