M31 216091
 

This thread is for the discussion of general Mersenne primes contiguous to M31. :banana:

Rank_k_n_____________digits_provercode_year
1109 97065*2^216095-1 65057 L9 2004
1110 62431*2^216093-1 65056 L9 2004
Are both general Mersenne primes :exclaim:
TTn
Shane F.

Anyone interested in following up on this Mersenne find 216095: :razz:
[url]http://groups.yahoo.com/group/primenumbers/files/RMA/[/url]

I'll be starting on the next general Mersenne prime, from here, for a little while to keep up my score. :blush: :redface:

M31
 

16371 216098 is prime

General Mersenne prime
 

55847 216100 is prime! :banana:
TTn

GM
 

48609*2^216101-1
22311*2^216103-1
are prime!

Moving quickly!

6213 216107 is prime!


Update of the sequence:
1 216091-1
62431 216093-1
97065 216095-1
16371 216098-1
55847 216100-1
48609 216101-1
22311 216103-1
6213 216107-1

gm
 

20265 216109 is prime!


Update of the sequence:
1 216091-1
62431 216093-1
97065 216095-1
16371 216098-1
55847 216100-1
48609 216101-1
22311 216103-1
6213 216107-1
20265 216109-1

M31
 

84415*2^216110-1
Yet another! :bounce:
That makes 6 in just over a month!

Update of the sequence:
1 216091-1
62431 216093-1
97065 216095-1
16371 216098-1
55847 216100-1
48609 216101-1
22311 216103-1
6213 216107-1
20265 216109-1
84415 216110-1

correction/new
 

Correcting the last prime as k = 74697, instead of k = 84415.

And a new prime:
122649*2^216111-1

Update of the contiguous sequence:
1 216091-1
62431 216093-1
97065 216095-1
16371 216098-1
55847 216100-1
48609 216101-1
22311 216103-1
6213 216107-1
20265 216109-1
74697 216110-1
122649 216111-1