Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Difference between revisions of "Curtis Cooper"
(restored) |
m |
||
Line 1: | Line 1: | ||
− | '''Curtis Cooper''' is a professor in the Department of Mathematics and Computer Science at the [[University of Central Missouri]]. He created a [[PrimeNet]] account on | + | '''Curtis Cooper''' is a professor in the Department of Mathematics and Computer Science at the [[University of Central Missouri]]. He created a [[PrimeNet]] account on 1998-07-06. On 2005-12-15 he and [[Steven Boone]] discovered that 2<sup>30 402 457</sup>-1 is prime; it was the [[M43|43rd]] [[Mersenne prime]] ever discovered and the largest known prime of any kind at the time. This record was surpassed on 2006-09-04 when the pair discovered the [[M44|44th]] known [[Mersenne prime]], 2<sup>32 582 657</sup>-1. As of 2008-09-15 his account is ranked #1 on [[PrimeNet]] in [[Lucas-Lehmer test|LL testing]], with over 242 000 P90 CPU years. His record as the largest Lucas-Lehmer test has remained strong and as of 2016-01-19 he has almost 19 million [[Computing power|GHz-Days]] of work contributed. |
− | On | + | On 2013-01-25 Cooper discovered his third Mersenne prime, 2<sup>57 885 161</sup>-1, the [[M48|48th]] known. |
− | On | + | On 2016-01-07 Cooper was again the discover of another world record Mersenne prime, 2<sup>74 207 281</sup>-1, the [[M49|49th]] known. At the time of discovery, he ran [[Prime95]] in five labs of his university on approximately 800 computers. |
==External links== | ==External links== | ||
+ | *[[Wikipedia:Curtis_Cooper_(mathematician)|Wikipedia]] | ||
*[http://cs.ucmo.edu/~cnc8851/primes.html His Prime page] | *[http://cs.ucmo.edu/~cnc8851/primes.html His Prime page] | ||
− | *[https:// | + | *[https://www.youtube.com/watch?v=q5ozBnrd5Zc YouTube video] |
[[Category:Persons|Cooper, Curtis]] | [[Category:Persons|Cooper, Curtis]] |
Revision as of 09:31, 6 February 2019
Curtis Cooper is a professor in the Department of Mathematics and Computer Science at the University of Central Missouri. He created a PrimeNet account on 1998-07-06. On 2005-12-15 he and Steven Boone discovered that 230 402 457-1 is prime; it was the 43rd Mersenne prime ever discovered and the largest known prime of any kind at the time. This record was surpassed on 2006-09-04 when the pair discovered the 44th known Mersenne prime, 232 582 657-1. As of 2008-09-15 his account is ranked #1 on PrimeNet in LL testing, with over 242 000 P90 CPU years. His record as the largest Lucas-Lehmer test has remained strong and as of 2016-01-19 he has almost 19 million GHz-Days of work contributed.
On 2013-01-25 Cooper discovered his third Mersenne prime, 257 885 161-1, the 48th known.
On 2016-01-07 Cooper was again the discover of another world record Mersenne prime, 274 207 281-1, the 49th known. At the time of discovery, he ran Prime95 in five labs of his university on approximately 800 computers.