The product of two factors is 152. One of the factors is multiplied by 4 and the other remains unchanged. What is the product?
两个因数的积是152，其中一个因数扩大到原来的4倍，另一个因数不变，积为多少．
<gadget id="calculator">152 * 4</gadget>
<output>608</output>

<result>608</result>