Use small cuboids with a length of 4 cm, a width of 3 cm, and a height of 2 cm to form a cube. How many such small cuboids should be used at least?
用长4厘米、宽3厘米、高2厘米的小长方体垒成一个正方体，至少要用多少个这样的小长方体？
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">3 * 4 * 6</gadget>
<output>72</output>

<result>72</result>