The dance team rehearses a program and requires 2 people, 3 people, and 7 people. There is no room left. How many people are needed to rehearse this program?
舞蹈队排练一个节目，要求2人一组，3人一组，7人一组都没有剩余，排练这个节目至少需要多少人？
<gadget id="calculator">2 * 3 * 7</gadget>
<output>42</output>

<result>42</result>