There are 42 people in Class 5 1 and 48 people in Class 5 2. The two classes are divided into groups to participate in tree planting activities, and the number of people in each group of the two classes must be the same. What is the maximum number of people in each group?
五1班有42人，五2班有48人．两个班分组参加植树活动，而且要求两个班每组的人数必须相同．每组最多有多少人？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>