For a full history of GIMPS, please see the Wikipedia entry
Great Internet Mersenne Prime Search

GIMPS was founded in 1996 by George Woltman. The software ran on Intel i386 systems using hand-tuned assembly code for the critical calculations, resulting in highly optimized Lucas-Lehmer code.

It wasn't long before GIMPS had it's first discovery in November of that same year, showing the effectiveness of distributed computing in harnessing spare computer cycles in a coordinated effort.

As efficient as the software itself was, the early years of GIMPS involved a manual process using emails to request work assignments and then send the results back. As the project grew, a more efficient system was needed and Scott Kurowski responded to that need with the introduction of PrimeNet through his company Entropia, a pioneer in the early days of distributed computing projects. Without Scott's invaluable contribution, the ability to manage thousands of volunteers and millions of work assignments would not have been possible. PrimeNet paved the way for the future growth of the project as a whole.

With the solid foundation of PrimeNet in place, George continued his focus on improving the core calculations of Prime95. As new Intel and AMD processors were introduced, George worked with the new instruction sets and timings to increase the performance. The core of the program is now able to optimize itself to work at peak efficiency on all modern CPU's, but also still finds a home on many older generation systems.

To see a list of all the large and small milestones in the GIMPS project, please see this page: GIMPS Milestones

Discovered Primes

1. 1996年11月13日 – Joel Armengaud discovered the 35th known Mersenne prime, 2^1398269-1
2. 1997年08月24日 – Gordon Spence discovered the 36th known Mersenne prime, 2^2976221-1
3. 1998年01月27日 – Roland Clarkson discovered the 37th known Mersenne prime, 2^3021377-1
4. 1999年06月01日 – Nayan Hajratwala discovered the 38th known Mersenne prime, 2^6972593-1
5. 2001年11月14日 – Michael Cameron discovered the 39th known Mersenne prime, 2^13466917-1
6. 2003年11月17日 – Michael Shafer discovered the 40th known Mersenne prime, 2^20996011-1
7. 2004年05月15日 – Josh Findley discovered the 41st known Mersenne prime, 2^24036583-1
8. 2005年02月18日 – Dr. Martin Nowak discovered the 42nd known Mersenne prime, 2^25964951-1
9. 2005年12月15日 – Curtis Cooper and Steven Boone discovered the 43rd known Mersenne prime, 2^30402457-1
10. 2006年09月04日 – Curtis Cooper and Steven Boone discovered the 44th known Mersenne prime, 2^32582657-1
11. 2008年09月06日 – Hans-Michael Elvenich discovered the 45th known Mersenne prime, 2^37156667-1
12. 2009年06月04日 – Odd Magnar Strindmo discovered the 46th known Mersenne prime, 2^42643801-1
13. 2008年08月23日 – Edson Smith discovered the 47th known Mersenne prime, 2^43112609-1
14. 2013年01月25日 – Curtis Cooper discovered the 48th known Mersenne prime, 2^57885161-1
15. 2016年01月07日 – Curtis Cooper discovered the 49th known Mersenne prime, 2^74207281-1
16. 2017年12月26日 – Jonathan Pace discovered the 50th known Mersenne prime, 2^77232917-1
17. 2018年12月07日 – Patrick Laroche discovered the 51st known Mersenne prime, 2^82589933-1
18. 2024年10月12日 – Luke Durant discovered the 52nd known Mersenne prime, 2^136279841-1

Newsletters

• 1996年02月24日
• 1996年02月26日
• 1996年04月12日
• 1996年06月11日
• 1996年07月31日
• 1996年09月03日
• 1996年11月01日
• 1996年11月23日
• 1997年01月15日
• 1997年03月11日
• 1997年05月26日
• 1997年09月01日
• 1998年02月02日
• 1998年05月22日
• 1999年04月03日
• 1999年07月06日
• 1999年10月04日
• 2001年09月25日
• 2003年12月02日