The product of two factors is 80. If one factor is multiplied by 4, the other factor is also multiplied by 4. What is the product?
两个因数的积是80，如果一个因数乘4，另一个因数也乘4，这时积是多少
<gadget id="calculator">80 * 16</gadget>
<output>1_280</output>

<result>1_280</result>