The length and width of a rectangle are both prime numbers in meters, and the circumference is 24 meters. What is the area of the rectangle?
一个长方形的长和宽都是以米为单位的质数，周长是24米，这个长方形的面积是多少？
<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<result>35</result>