12121 Search

12121 Search


Searching since 5/24/2004 for large primes of the form 121*2^n-1
This project is building on the work of 15k and Wilfred Keller et al. and is specifically a subsidary of the search of k*2^n-1 for k<300
This work is also based slightly on the work of the 321 search
The short term goal of this project is to search for n up to 4,000,000
Longer term goals are create searches similar to this one for other k<300 and to expand n higher than 4,000,000

12121 Sister project #1, 2721, has been made open to the public for testing. Help out here!


AUTOMATIC RANGE RESERVATION AND SUBMISSION IS NOW AVAILABLE! RESERVE YOUR RANGES AND SUBMIT RESULTS AT THE BOTTOM OF THIS PAGE!


A NEW LLR VERSION HAS BEEN RELEASED! Please download it here.

http://www.bodang.com/12121/