The product of two factors is 15.6. One of the factors remains unchanged and the other factor is increased by 10 times. What is the product?
两个因数的积是15.6，其中一个因数不变，另一个因数扩大10倍，积是多少．
<gadget id="calculator">15.6 * 10</gadget>
<output>156</output>

<result>156</result>