Roads are land transportation facilities that very important in facilitating economic relations activities, both between one city and another. Good road conditions will facilitate the movement of people relationships other social activities. Meanwhile, if there is damage, it not only hinder but accidents can occur. Many factors cause including weather, weather on surface when rains, scorching h...

Let p be a prime congruent to 1 modulo 4, and let t, u be rational integers such that (t + u √ p )/2 is the fundamental unit of the real quadratic field Q(√p ). The Ankeny-Artin-Chowla conjecture (AAC conjecture) asserts that p will not divide u. This is equivalent to the assertion that p will not divide B(p−1)/2, where Bn denotes the nth Bernoulli number. Although first published in 1952, this...