How many small cubes with a volume of 2 cubic centimeters are used to form a larger cube?
用体积2立方厘米的小正方体拼成一个较大的正方体，至少需要多少个这样的小正方体．
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<result>8</result>