Wow! That's a hit! Congratulations!

:party:

4207801666259*2^2211084-1 (665616 digits)

4761657101009*2^2292504-1 (690126 digits)

11*2^7971110-1 (2399545 digits) :banana::banana::banana:

Congratulations on this HUGE prime! :whee::whee::whee:

[QUOTE=Thomas11;531401]11*2^7971110-1 (2399545 digits) :banana::banana::banana:[/QUOTE]

That is prime!
Congratulations

[QUOTE=pepi37;531407]That is prime!
Congratulations[/QUOTE]
In my book any non-Mersenne prime over 1999,999 digits is awesome!:buddy::toot::rgerbicz:

[QUOTE=storm5510;527803][U]Question[/U]: What are these being ran with to get this format? It looks fascinating. :smile:[/QUOTE]

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.

Two new very large primes have been discovered on Christmas Day!

99739 · 2[SUP]14019102[/SUP] + 1 Second largest for 2019 and 20th Rank overall. 4,220,176 Digits

3214654[SUP]524288[/SUP] + 1 Largest Generalized Fermat for the year and 31st Rank overall. 3,411,613 Digits

Congrats :groupwave:

283*2^6804731-1 (2048431 digits) :smile:

[QUOTE=Thomas11;535508]283*2^6804731-1 (2048431 digits) :smile:[/QUOTE]

:w00t: