Here is a good question for maths enthusiasts. I really find this sum very tough. Any help, advice or guidance for this question will be greatly appreciated. find the product upto n terms (1+(1/2^2)) . (1+(1/3^2)) . (1+(1/5^2)) . (1+(1/7^2)) . (1+(1/11^2))......upto n terms Where the nth term is (1+(1/P^2)) or (1+(p^-2)) where p is a prime number. I feel this question is really tough and couldn't even get the logic how to solve it.