Abstract. Ever since Euler solved the so-called Basler problem of ζ(2) = ∞ n=1 1/n 2 , numerous evaluations of ζ(2n) (n ∈ N) as well as ζ (2) (1)The Riemann Zeta function ζ(s) in (1) plays a central rôle in the applications of complex analysis to number theory. The number-theoretic properties of ζ(s) are exhibited by the following result known as Euler's formula, which gives a relationship between the set of primes and the set of positive integers:where the product is taken over all primes. [75, pp. 197-198] and Zygmund [90, p. 364]):