20200127, 18:26  #111 
May 2009
Russia, Moscow
2·3^{2}·137 Posts 
I'm at ~55K, one prime so far for low weight k: 1296*2020^529311

20200131, 12:50  #112 
May 2009
Russia, Moscow
2·3^{2}·137 Posts 
Almost at 60K, no new primes. VBCurtis, there are no candidates for k=1968 in sieve file, did you knock this k out?

20200131, 17:11  #113 
"Curtis"
Feb 2005
Riverside, CA
2^{2}·3·359 Posts 
I did, found two primes for it. I did not report here because the machine that found them overheated, and hasn't been booted up successfully since so I don't have specific n values.

20200201, 15:53  #114 
Jan 2017
2×13 Posts 
Sierp base 2020 complete to 25K. 21 k's at 10K  6 k's found prime for 10K25K = 15 k's remaining. Base released except k=12, 402, and 892. K's remaining:
12 138 255 259 291 390 402 430 471 474 615 684 738 874 892 
20200201, 22:55  #115  
"Curtis"
Feb 2005
Riverside, CA
10324_{8} Posts 
Quote:
My desktop is functioning, but still runs hot. I'm slowly finishing to 50k on R2020. Likely another 46 days. 

20200227, 11:01  #116 
May 2009
Russia, Moscow
2×3^{2}×137 Posts 
Two more primes for R2020:
Code:
419*2020^638261 776*2020^663461 
20200319, 04:48  #117 
"Curtis"
Feb 2005
Riverside, CA
10D4_{16} Posts 
R2020 finally made it to 50k on my end, 70k including unconnected's work.
Primes from 40k50k: 1968 46193 1035 47247 1968 48526 (bummer, repeat) There were 38 k's left at 40k. I took out two, while unconnected took out three. 33 k's remain at 70k. Not continuing at present; I have a couple other loose ends to finish up on other projects before I continue this effort. The sieve file is a few posts up in this thread if anyone wants to take on a 5k or 10k block. 
20200319, 05:45  #118 
May 2009
Russia, Moscow
2×3^{2}×137 Posts 
I'm stopped at n=70k, one more prime: 788*2020^670111

20200319, 14:51  #119 
"Curtis"
Feb 2005
Riverside, CA
10D4_{16} Posts 
Whoops! "I'm going to stop" doesn't mean "I stopped". Whew, I'm glad you noticed my mistake, and also glad you found another prime!

20200728, 22:25  #120 
Nov 2016
2^{2}×557 Posts 
R9 k=386 and 744 tested to n=25K, no primes found, see post https://mersenneforum.org/showpost.p...&postcount=663
S12 k<1143 (3rd CK) tested to 25K, see https://mersenneforum.org/showpost.p...&postcount=665, these primes were found: 1057*12^690+1 1057*12^1072+1 1057*12^1522+1 563*12^4020+1 1052*12^5715+1 1057*12^6514+1 1057*12^6826+1 1057*12^7438+1 no primes found for k = 885, 911, 976, 1041 R12 k=1132 tested to n=21760, no primes (see post https://mersenneforum.org/showpost.p...&postcount=664), 1037*12^62811 is prime 
20200730, 15:30  #121 
Nov 2016
100010110100_{2} Posts 
Update the status file for:
SR8, R9: k<=1024 S12: k<=1143 (the 3rd CK) R12: k<=1288 (the 3rd CK) SR8 skipped the cube k's and the k's having covering set {3, 5, 13} (i.e. for S8, k == 47, 79, 83, 181 mod 195; for R8, k == 14, 112, 116, 148 mod 195) SR9 skipped the square k's and the k's having covering set {2, 5} (i.e. k == 41, 49 mod 80) (this is for (k*b^n+1)/gcd(k+1,b1), however, you can ignore the k's such that gcd(k+1,b1) is not 1, e.g. for S8, you can ignore the k's == 6 mod 7) 
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