A box of candies can be divided equally between 2, 3, and 5 children, and there is only 1 piece left. How many candies are there at least in this box? (Write out the analysis process)
一盒糖果可以平均分给2、3、5位小朋友，都还剩1颗，这盒糖果最少有多少颗？(写出分析过程)
<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>