20181212, 20:07  #1 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
24745_{8} Posts 
Predict M52
With M51 found and verified and only the official announcement awaiting, let's guess M52 (specifically, the next, currently unknown, Mersenne Prime yet to be noticed by a human.)
THE RULES OF THE GAME:
All previous guesses from other threads must be specifically restated. Absurd guesses may be ignore it any statistical reports or graphs. Rules may be clarified later. New rules for the next game may be suggested in this thread. Make your guess clear in your post. GAME ON! Last fiddled with by Uncwilly on 20190829 at 14:00 Reason: errant 'e' removed. 
20181212, 20:19  #2 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
146D_{16} Posts 
87,654,361
December 25, 2019 
20181212, 21:43  #3 
∂^{2}ω=0
Sep 2002
República de California
11,743 Posts 
96000193, May 1st 2021.

20181212, 22:15  #4 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
3×3,313 Posts 
110691517
6192022 (optimistic, I know) 
20181212, 22:37  #5  
Jul 2003
Behind BB
11110000111_{2} Posts 
Recycling an M50 prediction...
Quote:
Last fiddled with by masser on 20181212 at 22:38 

20181214, 13:43  #6 
"Dylan"
Mar 2017
2×3^{3}×11 Posts 
Exponent: 97,200,647
Date: February 2, 2021 
20181214, 18:10  #7 
"Marv"
May 2009
near the Tannhäuser Gate
2×3×7×19 Posts 
December 31, 2019
I am betting that the as the new PRP checking is adopted by more folks, the rate of exponents being tested for compositness will greatly accelerate. 
20181214, 22:25  #8 
"CharlesgubOB"
Jul 2009
Germany
2×311 Posts 
87885437
March 30 th 2019 Last fiddled with by moebius on 20181214 at 22:39 
20181214, 22:32  #9 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
3·5^{2}·11·13 Posts 
That is not a valid guess. Your guess must be a specific prime number. No expressions or ranges. If you decide after M51 is announced to post the equivalent value, you may. But, this counts against your 3 potential guesses. The 60 rule is thus invoked.

20181214, 22:43  #10 
"CharlesgubOB"
Jul 2009
Germany
2×311 Posts 
Yes I did an mistake and changed it, but your post was faster than my brain. Excuse me.

20181216, 19:31  #11 
P90 years forever!
Aug 2002
Yeehaw, FL
2×4,013 Posts 
Mr. Wagstaff and I predict: M107448181
June 2022 
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