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2015-10-24, 11:47   #12
aketilander

"Åke Tilander"
Apr 2011
Sandviken, Sweden

2·283 Posts

To contribute also a little to the discussion we expected to find roghly 6 Mersenne primes with 1-9 decimal digits, 6 more with 10-99 decimal digits and so forth

....

and 6 with 10 000 000 to 99 999 999 decimal digits

Very unexpectedly ,we have already found 4 in this interval, so far we have been extremely lucky, but if we are unlucky there might only be 1 or two more Mp with less then 100 000 000 decimal digits.

Here is a Little table:
Attached Files
 Number of Mersenne primes.pdf (33.1 KB, 124 views)

2015-10-24, 12:54   #13
cuBerBruce

Aug 2012
Mass., USA

2·3·53 Posts

Quote:
 Originally Posted by aketilander To contribute also a little to the discussion we expected to find roghly 6 Mersenne primes with 1-9 decimal digits, 6 more with 10-99 decimal digits and so forth .... and 6 with 10 000 000 to 99 999 999 decimal digits Very unexpectedly ,we have already found 4 in this interval, so far we have been extremely lucky, but if we are unlucky there might only be 1 or two more Mp with less then 100 000 000 decimal digits.
I tend to look at the number of Mersenne primes with n (decimal) digits in the exponent. From the point of view, we already have 10 Mersenne primes with 8-digit exponents - an overabundance.

2015-10-24, 12:58   #14
aketilander

"Åke Tilander"
Apr 2011
Sandviken, Sweden

56610 Posts

An updated list, including also the M#
Attached Files
 Number of Days between the Discovery of Mersenne Primes.pdf (30.2 KB, 218 views)

Last fiddled with by aketilander on 2015-10-24 at 13:00

2015-10-24, 16:46   #15
Dubslow

"Bunslow the Bold"
Jun 2011
40<A<43 -89<O<-88

3·29·83 Posts

Quote:
 Originally Posted by ATH we need to find the next one before Nov 10th 2016, 20:33:52 UTC.
A pipe dream. I think the most recent find was pretty darn lucky.

2016-01-19, 23:04   #16
0PolarBearsHere

Oct 2015

2·7·19 Posts

Quote:
 Originally Posted by Mini-Geek Unless you think there's another undiscovered discovered prime, like the one that was found and reported to computers, but then not noticed by humans for a few months.
Jinxed it :P

2016-01-19, 23:32   #17
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

838410 Posts

Quote:
 Originally Posted by 0PolarBearsHere Jinxed it :P
I think the more annoying part is that had it been found immediately this thread would not exist because there'd be no reason for it.

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