The fifth grade participates in the summer camp activities, whether it is a group of 7 people or a group of 8 people, there is nothing left. How many people are there to participate in the summer camp?
五年级参加夏令营活动无论是7人编成一组还是8人编成一组都正好无剩余，参加夏令营至少有多少人？
<gadget id="calculator">7 * 8</gadget>
<output>56</output>

<result>56</result>