How do you prove the attached question please?
I've got nowhere with it for days!
This problem has been partially 'attacked' here...
http://www.mathhelpforum.com/math-he...e-numbers.html
Kind regards
Sorry ... i did'nt read carrefully your pdf file and intended the expression...
... as the sum of reciprocal of prime numbers less or equal to , whereas it is clearly reported that are the numbers less or equal to that satisfy the equation...
How silly of me! ... The solution requires little more time...
Kind regards