The formula for the nth prime number has a bound of O(n / ln n) which makes the lesser terms noise (?) Same w pi(x) (?) Using a bound is more useful: n ln

The formula for the nth prime number has a bound of O(n / ln n) which makes the lesser terms noise (?) Same w pi(x) (?) Using a bound is more useful: n ln n + n(ln ln n - 1) < p_n < n ln n + n ln ln n (for n >= 6)