CoinMKT adds Primecoin on October 20

Another Bitcoin and altcoin exchange will enable Primecoin trading!
"CoinMKT will be swapping out Novacoin for Primecoin in the evening on Oct 20th. All of you XPM traders out there gear up!
If you have Novacoin in the system, please withdraw it this week or we can send it manually back to your wallet."

  » Read the full topic at CoinMKT

Primecoin breaks 4th world record

Primecoin is not only useful as a cryptocurrency, but also contributes to science. Recently, the Primecoin Network has broken a 4th world record by computing a 13-Primes 94-digit Cunningham chain of 2nd kind.

» Read the full topic at Primecoiner