450 people from Heping Primary School signed up for the extracurricular club. The school stipulates that each group has a maximum of 25 people, how many groups can it be divided into?
和平小学有450人报名参加课外活动俱乐部．学校规定，每组最多25人，至少可以分成多少个组？
<gadget id="calculator">450 / 25</gadget>
<output>18</output>

<result>18</result>