20201102, 22:44  #419 
"Norbert"
Jul 2014
Budapest
2×3×17 Posts 
Another new PRP:
419^52446+52446^419, 137525 digits. 
20201104, 13:37  #420  
"Mark"
Apr 2003
Between here and the
6,163 Posts 
Quote:


20201104, 15:12  #421 
Sep 2010
Weston, Ontario
2^{2}×47 Posts 
Thanks for the headsup. Occasionally my internet service provider changes the number of my IP address. This happens rarely but without notice and since I access chesswanks.com locally I usually don't notice until someone complains. When it happens I have to go to DYNDNS and have the domain point to the new number, which I have now done.

20201108, 04:05  #422 
Sep 2010
Weston, Ontario
2^{2}×47 Posts 
I have examined all Leyland numbers in the gap between L(147999,10) <148000> and L(148999,10) <149000> and found 11 new primes.

20201118, 12:46  #423 
Sep 2010
Weston, Ontario
2^{2}·47 Posts 
I have examined all Leyland numbers in the four gaps between L(222748,3) <106278>, #1986, and L(45405,286) <111532> and found 80 new primes. That makes L(45405,286) #2070.
That was interval #17. Interval #18 still has a month of sieving before I can even get a start on it. I'll be doing intervals #21, #25, and #26 until then. 
20201123, 18:04  #424 
"Norbert"
Jul 2014
Budapest
2·3·17 Posts 
Another new PRP:
208^52765+52765^208, 122313 digits. 
20201210, 18:11  #425 
"Norbert"
Jul 2014
Budapest
2×3×17 Posts 
Another new PRP:
13699^27268+27268^13699, 112800 digits. 
20201216, 11:25  #426 
Sep 2010
Weston, Ontario
2^{2}·47 Posts 
I have examined all Leyland numbers in the gap between L(146999,10) <147000> and L(147999,10) <148000> and found 12 new primes.

20201216, 19:54  #427 
"Norbert"
Jul 2014
Budapest
2×3×17 Posts 
Another new PRP:
13899^27442+27442^13899, 113692 digits. 
20201217, 00:49  #428 
"Norbert"
Jul 2014
Budapest
1100110_{2} Posts 
Another new PRP:
13706^27459+27459^13706, 113596 digits. 
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