The students carry out the "woodpecker" activity, and there are 2 people in groups of 7 or 8. At least how many people went to this event?
同学们开展"啄木鸟"活动，按7人一组或8人一组分组都余2人．这次活动至少去了多少人？
<gadget id="calculator">7 * 8</gadget>
<output>56</output>

<gadget id="calculator">56 + 2</gadget>
<output>58</output>

<result>58</result>