TITLE: Zeta Regularization and Products of Primes
QUESTION [1 upvotes]: How can one prove that:
$2 * 3 * 5 * 7 \ldots = \prod_{n=1}^{\infty} p_i = 4\pi^2$
using zeta regularization?
The sum diverges like the Ramanujan/Euler product but it can be associated to a value on the zeta curve...

REPLY [2 votes]: A proof can be found in this article or this preprint.
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