The fifth grade students of Guangming Elementary School are divided into groups of 7, 8 or 6 to do exercises, and they all happen to be assigned. How many students are there at least in the fifth grade?
光明小学五年级学生，分为7人一组、8人一组或6人一组排队做操，都恰好分完，五年级至少有多少学生．
<gadget id="calculator">2 * 2 * 2 * 3 * 7</gadget>
<output>168</output>

<result>168</result>