Subtracting 3 from a number is not only a multiple of 2 and 3, but also a multiple of 5. What is the smallest number?
把一个数减去3后既是2和3的倍数，又是5的倍数．这个数最小是多少？
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 + 3</gadget>
<output>33</output>

<result>33</result>