20210603, 16:41  #936  
May 2007
Kansas; USA
7·17·89 Posts 
Quote:
Last fiddled with by gd_barnes on 20210603 at 16:42 

20210603, 23:22  #937 
Dec 2011
After milion nines:)
2717_{8} Posts 

20210604, 00:50  #938  
"Robert Gerbicz"
Oct 2005
Hungary
1,531 Posts 
Quote:


20210604, 00:55  #939 
Dec 2011
After milion nines:)
1,487 Posts 

20210604, 01:02  #940 
"Robert Gerbicz"
Oct 2005
Hungary
1,531 Posts 
We are expecting that basically all of these (say >1000 digits) Prps are really primes, so not composite.
Last fiddled with by R. Gerbicz on 20210604 at 01:03 Reason: typo 
20210604, 01:06  #941 
Dec 2011
After milion nines:)
1,487 Posts 

20210604, 02:35  #942  
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2^{3}·7·173 Posts 
Strictly speaking it is not UTM servers' job to _prove_ your PRP prime.
In fact, Caldwell (consequently) should be credited with proving this PRP prime. You should be credited at prptop Lifchitz' website, that would be correct. It is the discoverer's burden to prove the PRP first, and only after that submit to UTM. Is it so hard to install LLR on your computer? Quote:
Instant gratification generation victim? 

20210604, 08:02  #943  
Dec 2011
After milion nines:)
1,487 Posts 
Quote:
Language barrier for many times ( like this one) I have LLR on my computer and I test and prove it is prime. But UTM server has last word , not me or my computer :) ( that is what I learn from you Batalov, when I found first prime here, many years ago) 

20210604, 12:38  #944 
"Alexander"
Nov 2008
The Alamo City
776_{10} Posts 
LLR 3.8.24 can run PRP/GEC tests now, followed automatically by the standard primality proof on whatever turns up as a probable prime. You don't really need Prime95 for GEC anymore.

20210604, 13:13  #945 
Dec 2011
After milion nines:)
1487_{10} Posts 

20210616, 11:01  #946 
Sep 2011
Germany
2^{2}×7×109 Posts 
170*709^1839881 found by grcpool.com (524487 digits)

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