Hurwitz's theorem (number theory)
= Hurwitz's theorem (number theory)
{wiki=Hurwitz's_theorem_(number_theory)}
Hurwitz's theorem in number theory, specifically concerning the distribution of integers with respect to their divisibility properties, states that for any integer \\( n \\), the number of representations of \\( n \\) as a sum of two positive squares, denoted \\( r_2(n) \\), can be expressed in terms of the prime factorization of \\( n \\).