In the multiplication formula, if one factor is multiplied by 5 and the other factor is also multiplied by 5, what is the product?
在乘法算式中，一个因数扩大5倍，另一个因数也扩大5倍，则积多少．
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>