The sixth grade students are rehearsing group gymnastics to celebrate the 60th anniversary of the founding of the People's Republic of China. They are divided into a row of 8 people, a row of 12 people, and a row of 20 people. They are all divided exactly. How many students in the sixth grade at least participate in the rehearsal?
六年级的学生为庆祝建国60周年排练团体操，把这些学生分为8人一排，12人一排，20人一排，都恰好分完，六年级至少有多少名学生参加排练？
<gadget id="calculator">2 * 2 * 2 * 3 * 5</gadget>
<output>120</output>

<result>120</result>