20031127, 12:56  #1 
2·3·13·59 Posts 
40th Prime Mersenne Number?
It has been in the press, but I didn't find the candidate.
It is 2^n 1 for which n? 
20031127, 13:02  #2 
Sep 2003
Borg HQ, Delta Quadrant
2×3^{3}×13 Posts 
Until verification runs are completed to ensure that it is a Mersenne Prime, the exponent will not be released. We've all been waiting to find out...

20031127, 16:49  #3 
Sep 2003
Borg HQ, Delta Quadrant
2·3^{3}·13 Posts 
George's verification runs will finish December 2. See this thread in the Lounge:
http://www.mersenneforum.org/showthr...&threadid=1420 
20031203, 13:45  #4 
Dec 2003
Hopefully Near M48
1758_{10} Posts 
Quoting www.mersenne.org:
On November 17, 2003 Michael Shafer's computer found the 40th known Mersenne prime, 220,996,0111! This number "weighs in" at a whopping 6,320,430 decimal digits! This is also the largest known prime number, surpassing GIMPS' last discovery by over 2 million digits. The number is (2^220996011)1 and has in fact been verified independently twice. 
20031203, 17:08  #5 
Jan 2003
North Carolina
2·3·41 Posts 
That's p=20,996,011
220,996,011 is a little beyond our reach today. 
20031205, 00:16  #6 
Jun 2003
20_{16} Posts 
According to the German Stern Magazine the new prime number is 2^20 996 011 1. It has 6 320 430 digits.
http://stern.de/wissenschaft/forschu...16686&nv=hp_rt The name is Michael Schaefer of the Michigan State University on a standard PC. 
20031205, 01:19  #7  
Sep 2003
Borg HQ, Delta Quadrant
2·3^{3}·13 Posts 
Quote:


20031205, 09:12  #8 
Dec 2003
Hopefully Near M48
2×3×293 Posts 
Oops, sorry about that typo.
For anyone who wants to know: # of digits = (p*log[base 10]2) rounded up. I think 
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