The teacher distributed some beautiful bookmarks to the students. Regardless of whether the average score is given to 6 students or the average score is given to 9 students, the score is just finished. How many bookmarks are there at least?
老师将一些漂亮的书签分给同学们．不论平均分给6个同学或平均分给9个同学都正好分完，这些书签最少有多少个？
<gadget id="calculator">2 * 3 * 3</gadget>
<output>18</output>

<result>18</result>