What is the smallest three-digit number that is divisible by 2, 5, and 7 at the same time?
能同时被2、5、7整除的最小三位数是多少．
<gadget id="calculator">2 * 5 * 7</gadget>
<output>70</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<result>140</result>