Half of the students in the fifth grade planted trees, and each group was divided into 3, 4, and 5 students. How many students are there at least in the fifth grade?
五年级有一半学生去植树，每组分3、4、5人都正好分完，五年级至少有多少名学生？
<gadget id="calculator">3 * 4 * 5 * 2</gadget>
<output>120</output>

<result>120</result>