The students performed group gymnastics and formed a total of 3 square formations, each with 172 people. How many students are performing group gymnastics?
同学们表演团体操，一共排成3个方阵，每个方阵都有172人．表演团体操的同学一共有多少人？
<gadget id="calculator">172 * 3</gadget>
<output>516</output>

<result>516</result>