Cut a cuboid with a length of 12 cm, a width of 7 cm, and a height of 8 cm into a cube with the largest volume. What is the volume of the cube in cm**3.
将一个长12厘米、宽7厘米、高8厘米的长方体截成一个体积最大的正方体，这个正方体的体积是多少厘米**3．
<gadget id="calculator">7 * 7 * 7</gadget>
<output>343</output>

<result>343</result>