The fifth grade students participate in the tree planting labor, and they can be divided into groups of 12 or 15 people. At least how many students in the fifth grade participate in the number planting
五年级同学参加植树劳动，按12人一组或15人一组都能正好分完，五年级参加植数的同学至少有多少人
<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>

<result>60</result>