A 28 cm long iron wire is used to form a rectangle, the length and width of which are integers in centimeters, what is the maximum area of the rectangle surrounded by square centimeters?
用一根28厘米长的铁丝围成一个长方形，长和宽都是整厘米数，围成的长方形面积最大是多少平方厘米．
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>