Students in the fourth grade participate in the broadcasting exercise competition, and they must form a square array of 8 people in each row, a total of 8 rows. How many students are needed to arrange this square matrix?
四年级的同学参加广播操比赛，要排成每行8人，共8行的方阵．排列这个方阵共需要多少名学生？
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>