All square roots failed

[RichD]

VBCurtis is correct, GNFS would be pretty quick. You're almost there with the sqrt.

You can run the sqrt in parallel if you have idle cores. Something like:

./msieve -nc3 11,13
./msieve -nc3 14,16
./msieve -nc3 17,19
...

You might want to use a different folder for each or point them to a different log file so you won't intersperse the output of each run.

[Xyzzy]

Originally Posted by RichD

You can run the sqrt in parallel if you have idle cores. Something like:

./msieve -nc3 11,13
./msieve -nc3 14,16
./msieve -nc3 17,19
 ...

You might want to use a different folder for each or point them to a different log file so you won't intersperse the output of each run.

Interesting!

[pinhodecarlos]

Thanks guys, my message was before going to bed so I left msieve running, results here: https://www.mersenneforum.org/showpo...1&postcount=33