The gymnastics team performs a gymnastics performance. The students participating in the performance are divided into teams of 15 or 25 people. They are all divided up. How many students are there at least?
体操队进行体操表演，参加表演的同学分为15人一队或25人一队都正好分完，参加表演的同学至少有多少人？
<gadget id="calculator">3 * 5 * 5</gadget>
<output>75</output>

<result>75</result>