The perimeter of a rectangle is 16 meters, and its length and width in meters are both prime numbers. What is the area of these two rectangles in square meters?
一个长方形周长是16米，它的长、宽的米数都是质数，这两个长方形的面积是多少平方米？
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>