GIMPS: Great Internet Mersenne Prime Search
My contribution to finding the largest prime numbers on the planet.
My Setup & Stats
Currently running GIMPS on 7 computers/servers with a total of 7 workers.
Active Machines
- Bologna — Dell Precision 5820 Workstation Tower
- Intel Xeon W-2123 @ 3.60 GHz — 4 hyperthreaded cores
- 32 GB RAM
- Linux Ubuntu (mprime)
- Roma — HP Envy Laptop
- Intel Core i7-10510U @ 1.80 GHz — 4 hyperthreaded cores
- 16 GB RAM
- Windows 11 (Prime95)
- Note: Discrete Nvidia MX250 is not useful for GIMPS compared to CPU.
- Sparta — Acer TC-780 Tower
- NVIDIA GeForce RTX 3060
- 12 GB RAM
- Linux Ubuntu (PRPLL-NTT)
- Previously used for mfaktc, now running PRP.
- RoboMiner — Advantech IPC
- Intel Core i7-8665UE @ 1.70 GHz — 4 hyperthreaded cores
- 32 GB RAM
- Windows 10 LTSC (Prime95)
- Server — Dell PowerEdge R550
- Intel Xeon Silver 4314 @ 2.40 GHz — 16 hyperthreaded cores
- 32 GB RAM
- Linux Ubuntu Server (mprime)
- Verona — HP Envy
- AMD Ryzen AI 7 350 — 8 hyperthreaded cores
- 32 GB RAM
- Windows 11 (Prime95)
- Total GHz-days contributed: 421,344
- Exponents tested: 1,736
- Current ranking: Top 133 on PrimeNet
I run Prime95 / mprime 24/7 on dedicated hardware. This page will be updated regularly with new milestones.
What is GIMPS? (click to expand)
The Great Internet Mersenne Prime Search (GIMPS) is a long-running distributed computing project started in 1996. It searches for Mersenne primes — enormous prime numbers of the form 2p − 1.
GIMPS has discovered the last 18 record-breaking primes, including the current largest known prime:
2136,279,841 − 1 (41,024,320 digits, discovered October 2024 by Luke Durant)
Why participate in GIMPS? (click to expand)
- Contribute to genuine mathematical discovery
- Stress-test and benchmark hardware
- Join a global community of enthusiasts
- Completely free and runs quietly in the background
How to Join GIMPS
- Visit mersenne.org
- Download Prime95 (Windows) or mprime (Linux/Mac)
- Create a free PrimeNet account
- Configure and start testing (PRP tests recommended for new users)
Resources
Last updated: June 2026
Feel free to reach out if you’re also running GIMPS!
Email: mi*****@******ti.uk