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 2019-10-09, 09:37 #1904 LaurV Romulan Interpreter     "name field" Jun 2011 Thailand 10,273 Posts Wow! That's a hit! Congratulations!
 2019-10-26, 13:52 #1905 Thomas11     Feb 2003 27·3·5 Posts 4207801666259*2^2211084-1 (665616 digits)
 2019-11-01, 08:52 #1906 Thomas11     Feb 2003 27·3·5 Posts 4761657101009*2^2292504-1 (690126 digits)
 2019-11-25, 08:50 #1907 Thomas11     Feb 2003 111100000002 Posts 11*2^7971110-1 (2399545 digits)
 2019-11-25, 11:04 #1908 unconnected     May 2009 Moscow, Russia 288810 Posts Congratulations on this HUGE prime!
2019-11-25, 11:33   #1909
pepi37

Dec 2011
After milion nines:)

162310 Posts

Quote:
 Originally Posted by Thomas11 11*2^7971110-1 (2399545 digits)
That is prime!
Congratulations

2019-11-26, 00:29   #1910
rudy235

Jun 2015
Vallejo, CA/.

21728 Posts

Quote:
 Originally Posted by pepi37 That is prime! Congratulations
In my book any non-Mersenne prime over 1999,999 digits is awesome!

2019-12-21, 20:13   #1911
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

2×3×937 Posts

Quote:
 Originally Posted by storm5510 Question: What are these being ran with to get this format? It looks fascinating.
Sorry for overlooking your question for so long. We run LLR to test k*2^n-1 or k*2^n+1 formats (and quite a few others). If LLR doesn't handle it, PFGW does.

Also, 231*2^2335281-1 is prime! 702992 digits.

 2019-12-27, 04:34 #1912 rudy235     Jun 2015 Vallejo, CA/. 2·3·191 Posts Two new very large primes have been discovered on Christmas Day! 99739 · 214019102 + 1 Second largest for 2019 and 20th Rank overall. 4,220,176 Digits 3214654524288 + 1 Largest Generalized Fermat for the year and 31st Rank overall. 3,411,613 Digits Congrats
 2020-01-19, 11:44 #1913 Thomas11     Feb 2003 192010 Posts 283*2^6804731-1 (2048431 digits)
2020-01-19, 19:12   #1914
paulunderwood

Sep 2002
Database er0rr

2·33·83 Posts

Quote:
 Originally Posted by Thomas11 283*2^6804731-1 (2048431 digits)

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