20080114, 21:05  #1 
Mar 2007
179 Posts 
I think I found a huge prime
LLR has reported a very large prime on one of my computers today. No  it's not more than 10 million digits, but it is larger than any other I've been involved with in the Prime Pages database. I will rerun this number with both LLR and PFGW on the two cores of another machine. Stay tuned.
Last fiddled with by monst on 20080114 at 21:42 Reason: will confirm with PFGW instead of Proth 
20080114, 21:37  #2 
I quite division it
"Chris"
Feb 2005
England
31·67 Posts 
How many digits?

20080114, 21:46  #3 
Mar 2007
B3_{16} Posts 
Just under a million, but larger than SB9.

20080115, 00:49  #4 
Jun 2003
4712_{10} Posts 
Assuming the doublecheck pans out... Grats!
However, if it is a base2 number, then LLR has already "proven" it so you can submit it to Prime Pages directly; no need for a doublecheck (especially with PFGW which will take a lot more time). 
20080115, 01:50  #5 
Mar 2007
179 Posts 
The form of the number is: k*2^n  1
I realize the LLR has proven it prime, but I want to doublecheck that there was no glitch during the initial LLR run. On my second machine, LLR will finish in about 4 hours. PFGW will take much longer. If LLR reports it prime again, I will submit it to the Prime Pages for their verification. Furthermore, this number is NOT part of a twin pair; NOR part of a Sophie Germain pair. (That would have shattered those records!) 
20080115, 02:07  #6  
Jun 2003
2^{3}·19·31 Posts 
Quote:
BTW, were you doing a fixedn or fixedk search? 

20080115, 05:07  #7 
Mar 2007
179 Posts 
The LLR test on the second computer confirmed the first result...
3139*2^33219051 is prime (999,997 digits) I have entered it into the Primes database for verification. 
20080115, 05:31  #8 
Sep 2002
Database er0rr
2×1,723 Posts 
Remarkable! Congrats.

20080115, 11:05  #9 
Oct 2004
Austria
7×353 Posts 
Congratulations!

20080115, 11:22  #10 
Jun 2003
Oxford, UK
5×379 Posts 
congrats. A monster from Monst !!

20080115, 11:57  #11  
May 2005
2×809 Posts 
Quote:
Anyways HUGE congratulations 

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