The fifth grade students plant trees in spring, and each group of 12 or 15 students can be divided exactly. How many people in the fifth grade will participate in the tree planting?
五年级同学春季植树，每12人一组或每15人一组都能正好分完，五年级参加植树的至少有多少人？
<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>

<result>60</result>