These are
the simple steps needed to participate in the 321 Search for primes.
To reserve
a range to test in 321 go here, choose a
test and post “xxxxxxx-xxxxxxxx :: xx reserved by Your_Username”. You can then
download the corresponding range from here.

Thomas11 reserving multiple ranges to work on
Test your
range for primes by using LLR
When you
are finished with your tests you’ll send the lresults.txt to [email protected]. Then he’ll take care of the rest. Remember to
write your username and what range you have completed. Just in case.
Then, if
you want to continue, just repeat the whole process.