A cuboid wooden block is 9cm long, 6cm wide, and 7cm high. If such a cuboid is stacked into a cube, how many pieces are needed at least.
一个长方体木块，长9cm，宽6cm，高7cm，用这样的长方体堆成一个正方体，至少需要多少块．
<gadget id="calculator">126 / 9</gadget>
<output>14</output>

<gadget id="calculator">126 / 6</gadget>
<output>21</output>

<gadget id="calculator">126 / 7</gadget>
<output>18</output>

<gadget id="calculator">14 * 21 * 18</gadget>
<output>5_292</output>

<result>5_292</result>