In order to welcome the 2010 Guangzhou Asian Games, the school held a poetry recital. The students participating in the competition can be divided into groups of 5 or 7. How many students are there at least?
为迎接2010年广州亚运会的召开，学校举行了诗歌朗诵会，参加比赛的同学按5人一组或7人一组都能正好分成若干小组，参加比赛的同学至少有多少人？
<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<result>35</result>