Primecoin is a rather interesting digital currency. It was developed by Sunny King, one of the same developers that created PPCoin and invented Proof-of-stake. Primecoin does not follow the same rules as the other currencies, and has a built in mathematical benefit. Due to the way it is mined, Primecoin actually discovers previously unknown prime numbers. Primecoin is a rather interesting digital currency. It was developed by Sunny King, one of the same developers that created PPCoin and invented Proof-of-stake. Primecoin does not follow the same rules as the other currencies, and has a built in mathematical benefit. Due to the way it is mined, Primecoin actually discovers previously unknown prime numbers. The innovative prime proof-of-work in Primecoin not only provides security and minting to the network, but also generates a special form of prime number chains of interest to mathematical research. Thus primecoin network is energy-multiuse, compared to bitcoin network. Primecoin is designed to sustain a prosperous mining market and high level of security, while maintaining good scarcity property like gold. Primecoin also processes payment transactions 10x faster than bitcoin network. All in all, Primecoin presents itself as an extremely interesting experiment; for the first time, we have a currency whose mining algorithm has a secondary value, and at the same time Primecoin, unlike so many other coins before it, actually makes serious attempts to improve on Bitcoin in unrelated aspects. Not taking into account Bitcoin’s massive headstart, Primecoin may well be the first alternative coin to actually be better than Bitcoin, giving the currency the potential for a bright future ahead.
Gapcoin is a new prime number based p2p cryptocurrency, which tries to eliminate the sticking points of other scientific currencies like Primecoin or Riecoin. It's a fork of Satoshi Nakamotos Bitcoin, a decentralized payment system which is independent of banks, governments and other centralized regulators. With Gapcoin, you will be able to anonymously send money around the globe in no time. The big improvement in comparison to Bitcoin is that instead of burning electricity for its own sake, Gapcoins Proof of Work function actually does useful work by searching for large prime gaps