A three-digit number is a multiple of 2, a multiple of 3, and a multiple of 5. What is the smallest three-digit number? How many.
一个三位数，是2的倍数，也是3的倍数，又是5的倍数．这个三位数最小是多少？多少．
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 * 4</gadget>
<output>120</output>

<result>120</result>