A classmate in a school is doing exercises, and the students are divided into groups of 5, 8, and 13, and they are all divided exactly. How many students are there at least in this school?
某学校同学做操，把学生分成5人一组，8人一组，13人一组，都恰好分完，这个学校至少有多少学生？
<gadget id="calculator">5 * 8 * 13</gadget>
<output>520</output>

<result>520</result>