20201118, 04:39  #34 
Nov 2020
11 Posts 
Reserving 12
I'm reserving 12 because numbers in this sequence are considered to be Proth numbers also. (n*12^n+1)

20201201, 13:20  #35 
"Mark"
Apr 2003
Between here and the
1A19_{16} Posts 
I have contacted both Steven Harvey and Gunther Loh. They are both still managing these searches. Please reach out to them to coordinate your reservations.

20201207, 20:58  #36 
Nov 2020
1011_{2} Posts 
Is it okay if I take back my reservation without actually doing any primality tests, or if I do the reservation, do I have to finish all of the work before releasing it?

20201207, 22:46  #37 
"Mark"
Apr 2003
Between here and the
3·17·131 Posts 
This thread is not used for managing reservations. If you reserved thru Steven or Gunther, then you can unreserve thru them.

20201208, 05:11  #38 
Nov 2020
11 Posts 
How to use LLR to primality test Gen. Cullen Primes?
I just want to see how long a primality test would take using LLR but I can't seem to use the files from the sieving program in LLR? Can anyone find a way to primality test Gen. Cullen primes?
Edit: I found out that you can use openPFGW to primality test these primes. Last fiddled with by YaoPlaysMC on 20201208 at 05:23 
20201208, 06:31  #39  
"Sam"
Nov 2016
5×67 Posts 
Quote:
Code:
200000:P:1:3:257 32 32 34 34 54 54 76 76 114 114 128 128 176 176 202 202 212 212 252 252 274 274 308 308 318 318 390 390 414 414 470 470 474 474 516 516 532 532 534 534 548 548 580 580 620 620 634 634 688 688 694 694 800 800 812 812 860 860 894 894 898 898 900 900 902 902 968 968 974 974 980 980 988 988 

20201208, 06:44  #40 
Romulan Interpreter
"name field"
Jun 2011
Thailand
271D_{16} Posts 
From srXsieve package, you can use srfile.exe to convert your sieve files to (almost) any format (like abc, abcd, pfgw, newpgen, etc), and put them in a form digested by LLR after just few trials, without much background knowledge.

20201208, 13:21  #41  
"Mark"
Apr 2003
Between here and the
6681_{10} Posts 
Quote:
Upon review, llr supports the ABC header of "$a*$b^$a$c", but gcwsieve outputs "$a*<base>^$a$b". It shouldn't be hard to modify gcwsieve to output an llr compatible ABC format. Until I do that you have other options to modify the file so that llr can use it. Last fiddled with by rogue on 20201208 at 13:34 

20220212, 04:50  #42 
Nov 2020
11_{10} Posts 
For b=12 I found a new prime (345951*12^345951+1). Almost made the top 20 generalized Cullen primes.
Special modular reduction using zeropadded AVX512 FFT length 144K, Pass1=192, Pass2=768, clm=1 on 345951*12^345951+1 Calling BrillhartLehmerSelfridge with factored part 55.79% 345951*12^345951+1 is prime! (488.4216s+0.0016s) 
20220212, 05:19  #43 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
3×3,301 Posts 

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