20191216, 04:01  #45 
"Rashid Naimi"
Oct 2015
Remote to Here/There
2·1,009 Posts 
Good stuff Serge,
Thanks for saving me the hassle. That would have definitely taken me more than a month to find. Kudos to you sir. But I think as difficult as it was, it is still a much smaller k than one would have expected for a 10k dd+ (Or is it 13k dd+) twin prime pair if the distribution was unbiased. I will leave it to Mr. Greathouse to do the probability calculation. It must be about square of the probability getting a single prime of the size. Last fiddled with by a1call on 20191216 at 04:09 
20191218, 01:26  #46 
"Rashid Naimi"
Oct 2015
Remote to Here/There
2·1,009 Posts 
The sequence A126612 was approved in 2007.
It seems to be missing the M607 entry, 44649. The additional entries are: 64125, 533040, 407635, 273249 (found by Paul Underwood), 3901012, 718187, 3527063, 9522163, [M21701 entry], 20121642 (found by Batalov), 337342290 (found by Batalov). I do not have editing privileges. what is the process of completing the list? Thanks in advance. 
20191219, 06:17  #47 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2×3×1,571 Posts 
For a price of $50 on aws I found this pair, too:
2332724220*(2^862431)±1 are prime 
20191220, 23:46  #48 
Sep 2003
101000011110_{2} Posts 

20191221, 18:34  #49 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2×3×1,571 Posts 
Ok I will fill in the k value for 21701, and will do a light doublecheck and will submit next week

20191221, 20:11  #50 
"Rashid Naimi"
Oct 2015
Remote to Here/There
11111100010_{2} Posts 
I am following this thread but have not had the time to properly post to it.
The minimal k.6 for 21701 is 23128315.6.M21701 +/1 Kudos to Batalov for the 25k dd+ solution. Last fiddled with by a1call on 20191221 at 20:12 
20191222, 02:23  #51 
"Rashid Naimi"
Oct 2015
Remote to Here/There
3742_{8} Posts 
To post a more complete post for M21701:
23128315.6.M21701 +/ 1 are minimal TwinPrimes for M21701 with 6541 dd each. Found using PariGP & PFGW. ETA: 23128315*6*(2^217011)+1 23128315*6*(2^217011)1 Last fiddled with by a1call on 20191222 at 02:32 
20191222, 02:56  #52  
"Rashid Naimi"
Oct 2015
Remote to Here/There
3742_{8} Posts 
Quote:
I have a question for you: i tried to create a Windows server instance on GoogleCompute with 96 cores, but I keep getting the message that there is a quota limit of 24 cores for that region. When I check the availability for the region it states that up to 96 cores should be available with the skylake. How do I setup a Windows instance with 96 cores? Thank you in advance for your insight. 

20191222, 03:20  #53  
"Rashid Naimi"
Oct 2015
Remote to Here/There
3742_{8} Posts 
Quote:
I will setup a run for the next MersennePrime in the queue: M110503. I do not expect a timely resolution. BTW if anyone wants to find Twins for M216091, please be my guest. there are no TwinPrimes for it below 1241000.6.M216091. 

20191222, 18:29  #54  
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2×3×1,571 Posts 
Quote:
With regards to individual contributions: The editors' position is that everyone can post only their results, so my comments about others' contributions were edited out. Those who have anything to add are encouraged to register and post their own edits. 
