If a number is divided by 2, 3, and 5, the remainder is 1, what is the smallest number?
某数分别被2、3、5除，都余1，那么这个数最小是多少
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>