The students participated in the Learning from Lei Feng activity. The whole school was divided into 12 teams, and each team was divided into 5 groups, with 9 people in each group. How many people in the whole school participated in the Learning from Lei Feng activity?
同学们参加学雷锋活动，全校分成12队，每队分5组，每组有9人，全校共有多少人参加学雷锋活动？
<gadget id="calculator">9 * 5 * 12</gadget>
<output>540</output>

<result>540</result>