When a natural number is divided by 3, the remainder is 2, and when divided by 5, the remainder is 4. What is the smallest number?
一个自然数除以3余2，除以5余4，这个数最小是多少
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 - 1</gadget>
<output>14</output>

<result>14</result>