20101114, 17:20  #78  
May 2010
Prime hunting commission.
2^{4}·3·5·7 Posts 
Quote:
Mersenne numbers are numbers of the form 2^{p}  1, where p is any prime number; There may be a chance that 2^{p}  1 is prime, and any factors of such a number are of the form 2kp + 1, where p is the exponent, and are probably the easiest to test, with a convenient little test for specifically those types of primes. Other than that, there is not much more to learn about them. Last fiddled with by 3.14159 on 20101114 at 17:21 

20101114, 17:22  #79 
Aug 2006
3^{2}·5·7·19 Posts 

20101114, 17:29  #80 
May 2010
Prime hunting commission.
2^{4}×3×5×7 Posts 
Last fiddled with by 3.14159 on 20101114 at 17:30 
20101114, 17:36  #81 
Aug 2006
3^{2}×5×7×19 Posts 

20101114, 17:49  #82 
"Forget I exist"
Jul 2009
Dumbassville
20C0_{16} Posts 

20101114, 17:55  #83 
Aug 2006
1011101100001_{2} Posts 

20101114, 18:09  #84 
May 2010
Prime hunting commission.
690_{16} Posts 

20101114, 18:11  #85 
May 2010
Prime hunting commission.
2^{4}·3·5·7 Posts 
Thanks, Captain Obvious, but it wasn't necessary. 5.
Last fiddled with by 3.14159 on 20101114 at 18:12 
20101114, 18:11  #86 
Aug 2006
1761_{16} Posts 
The best known scheme for private information retrieval and locallydecodable codes, a vast improvement on the previous method, uses Mersenne primes.

20101114, 18:12  #87 
May 2010
Prime hunting commission.
690_{16} Posts 

20101114, 18:15  #88 
"Forget I exist"
Jul 2009
Dumbassville
20C0_{16} Posts 

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