The length and width of a rectangle are prime numbers, and the perimeter is 36cm. What is the maximum area of a rectangle?

The length and width of a rectangle are prime numbers, and the perimeter is 36cm. What is the maximum area of a rectangle?

The prime numbers below 2 * (a + b) = 36, a + B = 18.18 are only 2,3,5,7,11,13,17. The conditions are 7 and 11 and 5 and 13, 7 * 11 = 77 > 5 * 13 = 65