A number is both a multiple of 2 and a multiple of 3 and has a factor of 5. What is the smallest number?
一个数既是2的倍数，又是3的倍数，且含有因数5，这个数最小是多少？
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<result>30</result>