In a formula, the product is 280, one factor is reduced by 5 times, and the other number is enlarged by 10 times, what is the product?
在一个算式中积是280，一个因数缩小5倍，另一个数扩大10倍，积是多少．
<gadget id="calculator">280 / 5</gadget>
<output>56</output>

<gadget id="calculator">56 * 10</gadget>
<output>560</output>

<result>560</result>