During the cultivation process of a certain bacterium, the bacterium divides once every half hour (one splits into two), after two hours, how many does this bacterium divide from 1
某种细菌在培养过程中，细菌每半小时分裂一次(由一个分裂成二个)，经过两小时，这种细菌由1个分裂成多少个
<gadget id="calculator">2 * 2 * 2 * 2</gadget>
<output>16</output>

<result>16</result>