We know there is infinitely many primes, but are there infinitely many twin primes?
In issue No 1 we introduced GIMPS, the Great Internet Mersenne Prime Search. Well, on Sunday 24th August 1997 they did it again.
Every even number greater than 4 can be written as the sum of two odd primes - a simple statement, but still unproven today.
You may think that searching for new prime numbers is a job for super-computers. However, on 13th November 1996, Frenchman Joel Armengaud discovered a new one using his humble PC.