Largest Known Prime Number Discovered. (Article)
Post Reply
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
06-02-2013, 03:23 PM (This post was last modified: 06-02-2013 06:19 PM by Dark Light.)
Largest Known Prime Number Discovered. (Article)
Article here. A math professor has discovered a prime number whose digits number 17,425,170. That is seventeen-million-four hundred-twenty five-thousand-one hundred-seventy digits long. This dethrones the previous record of a prime number that is ~12 million. The number in question is 2^57,885,161-1.

From the article " the number is the 48th example of a rare class of primes called
Mersenne Primes. Mersenne primes take the form of 2 raised to the power
of a prime number minus 1. Since they were first described by French
monk Marin Mersenne 350 years ago, only 48 of these elusive numbers have
been found, including the most recent discovery."

Find all posts by this user
Like Post Quote this message in a reply
06-02-2013, 03:33 PM
RE: Largest Known Prime Number Discovered. (Article)
People have to much time on their hands.

I don't talk gay, I don't walk gay, it's like people don't even know I'm gay unless I'm blowing them.
[Image: 10h27hu.jpg]
Find all posts by this user
Like Post Quote this message in a reply
[+] 2 users Like earmuffs's post
06-02-2013, 03:42 PM
RE: Largest Known Prime Number Discovered. (Article)
Wait, if the equation is 2^a prime number minus 1 then 2^57885167 -1 is bigger then his number.
Where's my $3,000?

I don't talk gay, I don't walk gay, it's like people don't even know I'm gay unless I'm blowing them.
[Image: 10h27hu.jpg]
Find all posts by this user
Like Post Quote this message in a reply
06-02-2013, 03:47 PM
RE: Largest Known Prime Number Discovered. (Article)
Forgive what may be an ignorant question, but other than the pursuit of knowledge, what does knowing if that number is prime or not do for us? I am not saying that people shouldn't look for them. Just an innocent question.
Find all posts by this user
Like Post Quote this message in a reply
06-02-2013, 04:08 PM
RE: Largest Known Prime Number Discovered. (Article)
(06-02-2013 03:47 PM)devilsadvoc8 Wrote:  Forgive what may be an ignorant question, but other than the pursuit of knowledge, what does knowing if that number is prime or not do for us? I am not saying that people shouldn't look for them. Just an innocent question.
Prime numbers are used a lot in cyber-security, the bigger the number the harder to crack the codes, because there's no formula that provides prime numbers every single one of them must be calculated individually (there're a few candidates for the formula but they're not proven yet). That's why this stuff can be a big deal.

[Image: sigvacachica.png]
Find all posts by this user
Like Post Quote this message in a reply
[+] 2 users Like nach_in's post
06-02-2013, 11:09 PM
RE: Largest Known Prime Number Discovered. (Article)
(06-02-2013 03:42 PM)earmuffs Wrote:  Wait, if the equation is 2^a prime number minus 1 then 2^57885167 -1 is bigger then his number.
Where's my $3,000?
Prove that 2^57885167 -1 is prime. 2^4 -1 is not prime, so the generic formula 2^a -1 for some value of a does not necessarily make a prime number.
Find all posts by this user
Like Post Quote this message in a reply
07-02-2013, 01:59 AM
RE: Largest Known Prime Number Discovered. (Article)
(06-02-2013 11:09 PM)BryanS Wrote:  
(06-02-2013 03:42 PM)earmuffs Wrote:  Wait, if the equation is 2^a prime number minus 1 then 2^57885167 -1 is bigger then his number.
Where's my $3,000?
Prove that 2^57885167 -1 is prime. 2^4 -1 is not prime, so the generic formula 2^a -1 for some value of a does not necessarily make a prime number.


4 is not prime. The exponent needs to be a prime number.

Skepticism is not a position; it is an approach to claims.
Science is not a subject, but a method.
[Image: flagstiny%206.gif]
Visit this user's website Find all posts by this user
Like Post Quote this message in a reply
07-02-2013, 02:33 AM
RE: Largest Known Prime Number Discovered. (Article)
Well...

Peaking in this thread was a mistake.

I am thoroughly confused.

A single action is worth more than the words it takes to describe it.
Find all posts by this user
Like Post Quote this message in a reply
07-02-2013, 03:51 AM
RE: Largest Known Prime Number Discovered. (Article)
I tried to calculate 2^57,885,161 -1 on my computer. At around 2^6,500,000 I ran out of memory.


I had to do it iteratively, since using Python's built-in exponentiation function just results in the interpreter locking up and crashing.

E 2 = (mc 2)2 + (pc )2
614C → 714N + e + ̅νe
2 K(s) + 2 H2O(l) → 2 KOH(aq) + H2 (g) + 196 kJ/mol
It works, bitches.
Find all posts by this user
Like Post Quote this message in a reply
07-02-2013, 10:23 AM
RE: Largest Known Prime Number Discovered. (Article)
(07-02-2013 03:51 AM)Phaedrus Wrote:  I tried to calculate 2^57,885,161 -1 on my computer. At around 2^6,500,000 I ran out of memory.


I had to do it iteratively, since using Python's built-in exponentiation function just results in the interpreter locking up and crashing.
Dude, you expected different results? Laughat

Find all posts by this user
Like Post Quote this message in a reply
Post Reply

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Chariklo- the newly discovered asteroid with rings Bows and Arrows 1 78 26-03-2014 02:30 PM
Last Post: Marozz
  The fusing of chromosome number 2, how did it happen (biologists help) Formaldehyde 7 299 26-01-2014 04:00 PM
Last Post: ghostexorcist
  The stupid....it hurts (ICR article about Dmanisi) Chance 14 490 14-11-2013 09:31 AM
Last Post: jaguar3030
  Cool-o humungo volcano discovered Bucky Ball 4 335 13-09-2013 01:11 PM
Last Post: Bucky Ball
  Newly discovered mammal ... Chas 2 323 16-08-2013 09:51 AM
Last Post: GirlyMan
  The Largest Dinosaurs Carlo_The_Bugsmasher_Driver 36 1,073 22-07-2013 02:18 PM
Last Post: kingschosen
  Article about a Dr. in NY specializing in resurrection; resuscitation outdated Spegof 2 309 07-04-2013 09:30 PM
Last Post: Spegof
Forum Jump: