For a basket of apples, if you take 4 apples by 4, you can just take them all; if you take 10 apples by 10, you can just take them all. How many apples are there in this basket?
一篮苹果，4个4个地取，正好能取完；10个10个地取，也正好能取完．这篮子苹果至少有多少个．
<gadget id="calculator">2 * 2 * 5</gadget>
<output>20</output>

<result>20</result>