- May 3, 2010Hi all,

A correspondent has asked me about the infinite product (p-2)/p where p is a prime from 5 to infinity. So the first few terms are

3/5, 5/7, 9/11, 11/13, 15/17 etc.

Clearly the terms converge to 1, and the product - 3/5, then 3/7, then 27/77, then 27/91, etc - also converges. But does the product converge to zero, or to a small but finite number?

I have been unable to answer him definitively. Can anyone else here do so?

Tim - Next post in topic >>