Using small cubes with an edge length of 1 cubic centimeter, how many pieces are needed to form a large cube?
用棱长是1立方厘米的小正方体木块，拼成一个大正方体至少需要多少块块．
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<result>8</result>