The starting point of bus No. 3 and No. 5 is at the same location. Bus No. 3 departs every 6 minutes, and No. 5 departs every 8 minutes. After the two buses depart at the same time, at least how many minutes pass by the two buses It was only the second time that they started at the same time.
3路和5路公共汽车起点在同一位置，3路车每隔6分钟发一次车，5路车每隔8分钟发一次车，这两路公共汽车同时发车以后，至少过多少分钟两路车才第二次同时发车．
<gadget id="calculator">2 * 2 * 2 * 3</gadget>
<output>24</output>

<result>24</result>