The terminus of the bus company is the departure station of No. 28 and No. 2. No. 28 bus departs every 8 minutes, and No. 2 bus departs every 12 minutes. After the two cars start at the same time, how many minutes must elapse before they start at the same time?
公交公司总站是28路和2路的始发站，28路车每隔8分钟发车一次，2路车每隔12分钟发车一次．两车同时发车后，至少要经过多少分钟又同时发车？
<gadget id="calculator">2 * 2 * 2 * 3</gadget>
<output>24</output>

<result>24</result>