cuboid has a length of 5 cm, a width of 4 cm, and a height of 3 cm. To build a cube with this cuboid (no gaps can be left around, and gaps can be left in the middle), how many such cuboids are needed at least.
一种长方体的长为5厘米，宽为4厘米，高为3厘米，要用这种长方体垒成一个正方体(四周不能留空隙，中间可以留空隙)，最少需要多少个这种长方体．
<gadget id="calculator">60 / 5</gadget>
<output>12</output>

<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<gadget id="calculator">12 * 15 * 20</gadget>
<output>3_600</output>

<result>3_600</result>