<t>Let us suppose that there are N integers from 1, ..., N. We will pick up two random numbers A and Buniformly from this set. Suppose that the prime numbers in this set are: p1, p2, ..., p_mthen the probability that p1|A and p1|B is: C(N/p1, 2) / C(N,2) with is almost 1/p1^2 when N is large.Then th...