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 2022-11-12, 11:00 #1706 gd_barnes     May 2007 Kansas; USA 22×2,887 Posts 667*2^1839205-1 is prime
 2022-11-12, 12:09 #1707 Luminescence   Oct 2021 Germany 22×3×13 Posts Added 134530 : 567*2^2146332-1 (646114 digits)
 2022-11-14, 23:48 #1708 gd_barnes     May 2007 Kansas; USA 2D1C16 Posts 705*2^1840379-1 is prime
 2022-11-15, 05:11 #1709 Luminescence   Oct 2021 Germany 22·3·13 Posts 405*2^2152377-1 is Prime! Seems like this one was reported on the 14th November by the Riesel Prime Search. Last fiddled with by Luminescence on 2022-11-15 at 05:12
2022-11-15, 11:48   #1710
gd_barnes

May 2007
Kansas; USA

22×2,887 Posts

Quote:
 Originally Posted by Luminescence 405*2^2152377-1 is Prime! Seems like this one was reported on the 14th November by the Riesel Prime Search.
VBCurtis at RPS has searched k=405 on-and-off for many years beginning a little before NPLB was started. Coincidentally he happened to find the prime shortly before you did.

2022-11-15, 16:51   #1711
Luminescence

Oct 2021
Germany

22·3·13 Posts

Quote:
 Originally Posted by gd_barnes VBCurtis at RPS has searched k=405 on-and-off for many years beginning a little before NPLB was started. Coincidentally he happened to find the prime shortly before you did.
Ohhh well, whatever… I have found plenty so far

Added 134542 : 415*2^2153341-1 (648223 digits)
Added 134543 : 537*2^2153392-1 (648239 digits)

Like these two back to back

2022-11-16, 05:33   #1712
gd_barnes

May 2007
Kansas; USA

22×2,887 Posts

Quote:
 Originally Posted by Luminescence Ohhh well, whatever… I have found plenty so far Added 134542 : 415*2^2153341-1 (648223 digits) Added 134543 : 537*2^2153392-1 (648239 digits) Like these two back to back
Nice run! 2 primes within 45 minutes of each other and 6 primes in < 8 days!
Meanwhile:
713*2^1841166-1 is prime!

 2022-11-21, 00:26 #1713 gd_barnes     May 2007 Kansas; USA 101101000111002 Posts Max found: 655*2^1843379-1 is prime
 2022-11-22, 08:32 #1714 Luminescence   Oct 2021 Germany 15610 Posts Added 134569 : 453*2^2165267-1 (651813 digits)
 2022-11-26, 05:46 #1715 gd_barnes     May 2007 Kansas; USA 101101000111002 Posts 775*2^1846945-1 is prime
 2022-11-27, 03:16 #1716 gd_barnes     May 2007 Kansas; USA 22×2,887 Posts Max found: 663*2^1847319-1 is prime

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