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Forum: Probability & Probabilistic Number Theory 2017-11-29, 01:43
Replies: 32
Views: 13,771
Posted By a1call
Well I gave all the recommendations a try. no...

Well I gave all the recommendations a try. no errors, but also no change.:smile:

I should add that my ubuntu is a virtual machine that might be the cause problem. The setup is a default setup, so...
Forum: Probability & Probabilistic Number Theory 2017-11-28, 02:59
Replies: 32
Views: 13,771
Posted By a1call
Acknowledged with thanks GP2. I'm done for...

Acknowledged with thanks GP2.

I'm done for the day.
Will give that a try tomorrow eve.
Forum: Probability & Probabilistic Number Theory 2017-11-28, 00:18
Replies: 32
Views: 13,771
Posted By a1call
In ubuntu: There is root privileges using su,...

In ubuntu:
There is root privileges using su, but I'm a very poor typer and don't know the terminal commands. Looking them up is too much of a hassle.

There is the gksudo for GUIs but running...
Forum: Probability & Probabilistic Number Theory 2017-11-27, 07:10
Replies: 32
Views: 13,771
Posted By a1call
I don't think I need to worry about low...

I don't think I need to worry about low probability of hitting large PRP.
My Lehrmer non primality code freezes my desktop with 11-dd candidates.
:grin:
Forum: Probability & Probabilistic Number Theory 2017-11-27, 01:27
Replies: 32
Views: 13,771
Posted By a1call
Well, I downloaded the linux version from...

Well, I downloaded the linux version from sourceforge. But I can't make it executable on ubuntu because it does not give me root privileges. I wished they would change this unnecessary "security"...
Forum: Probability & Probabilistic Number Theory 2017-11-26, 22:41
Replies: 32
Views: 13,771
Posted By a1call
I like that reference:smile: ...

I like that reference:smile:

http://www.periodictable.com/Samples/026.55/s13.JPG


You know what they say:

You can't teach an old d d d distinguished gentleman new tricks.
Forum: Probability & Probabilistic Number Theory 2017-11-26, 22:36
Replies: 32
Views: 13,771
Posted By a1call
Point well taken. I wasn't considering the low...

Point well taken. I wasn't considering the low probability of prime/PRP in the high ranges.

But then again I am more interested in understanding the different mechanics of the concept rather...
Forum: Probability & Probabilistic Number Theory 2017-11-26, 19:51
Replies: 32
Views: 13,771
Posted By a1call
What is the largest PRP range that can be found...

What is the largest PRP range that can be found using Fermat's Little Theorem (base 2) on Pari GP running on a custom pc with x GBs of memory?
Another way of asking the same question is:
What is...
Forum: Probability & Probabilistic Number Theory 2017-11-26, 19:45
Replies: 32
Views: 13,771
Posted By a1call
Thank you very much for the corrections and extra...

Thank you very much for the corrections and extra research DS.
You are a very valuable member of this board.:smile:
Forum: Probability & Probabilistic Number Theory 2017-11-25, 23:37
Replies: 32
Views: 13,771
Posted By a1call
Thank you very much for the detailed analysis...

Thank you very much for the detailed analysis Batalov, much appreciated.
On a somewhat related benchmark

:smile:
https://archive.lib.msu.edu/crcmath/math/math/c/c060.htm
Forum: Probability & Probabilistic Number Theory 2017-11-25, 19:37
Replies: 32
Views: 13,771
Posted By a1call
Similarly this test does not seem to involve any...

Similarly this test does not seem to involve any significant programmatic loops and the exponentiation does not necessarily go as high as to the power of the candidate.
Interestingly it was...
Forum: Probability & Probabilistic Number Theory 2017-11-25, 17:45
Replies: 32
Views: 13,771
Posted By a1call
If I understand it correctly any integer that...

If I understand it correctly any integer that passes any of the multitude of probabilistic primality tests and is not known to be a composite is a PRP.
This particular test for example does not seem...
Forum: Probability & Probabilistic Number Theory 2017-11-25, 17:08
Replies: 32
Views: 13,771
Posted By a1call
Thank you very much for the reply SM. The...

Thank you very much for the reply SM.
The largest known Prime has 22M+ dd.
The largest PRP listed in your link seems to have only 4M+ dd.
So it comes much short.
Forum: Probability & Probabilistic Number Theory 2017-11-25, 16:48
Replies: 32
Views: 13,771
Posted By a1call
Largest Known PRP

I wondered what was the largest known PRP and was expecting to find references to one which was larger than the largest known Prime.
My search came short:
...
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