| Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Navigation
| Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Difference between revisions of "David Slowinski"
(restored) |
m |
||
| Line 1: | Line 1: | ||
{{Stub}} | {{Stub}} | ||
| − | '''David Slowinski''' had been a [[computer]] scientist at [[Cray Research]] starting in 1977 until about 1999. He had searched for [[Mersenne prime]]s using Cray [[ | + | '''David Slowinski''' had been a [[computer]] scientist at [[Cray Research]] starting in 1977 until about 1999. He had searched for [[Mersenne prime]]s using Cray [[Classes of computers#Supercomputer|supercomputers]] (using the [[mprime (Cray)|software that he wrote]]) and has been involved in the discovery of seven Mersenne primes, namely: |
| − | {| | + | {| class="wikitable" |
| − | + | ! Name !! Value !! Discovery date | |
| − | |||
| − | |||
|- | |- | ||
| − | | [[M27]] | + | | [[M27]] || <math>2^{44,497}-1</math> || 1979-04-08 |
| − | | <math>2^{44,497}-1</math> | ||
| − | | 1979-04-08 | ||
|- | |- | ||
| − | | [[M28]] | + | | [[M28]] || <math>2^{86,243}-1</math> || 1982-09-25 |
| − | | <math>2^{86,243}-1</math> | ||
| − | | 1982-09-25 | ||
|- | |- | ||
| − | | [[M30]] | + | | [[M30]] || <math>2^{132,049}-1</math>|| 1983-09-19 |
| − | | <math>2^{132,049}-1</math> | ||
| − | | 1983-09-19 | ||
|- | |- | ||
| − | | [[M31]] | + | | [[M31]] || <math>2^{216,091}-1</math> || 1985-09-01 |
| − | | <math>2^{216,091}-1</math> | ||
| − | | 1985-09-01 | ||
|- | |- | ||
| − | | [[M32]] | + | | [[M32]] || <math>2^{756,839}-1</math> || 1992-02-17 |
| − | | <math>2^{756,839}-1</math> | ||
| − | | 1992-02-17 | ||
|- | |- | ||
| − | | [[M33]] | + | | [[M33]] || <math>2^{859,433}-1</math> || 1994-01-04 |
| − | | <math>2^{859,433}-1</math> | ||
| − | | 1994-01-04 | ||
|- | |- | ||
| − | | [[M34]] | + | | [[M34]] || <math>2^{1,257,787}-1</math> || 1996-09-03 |
| − | | <math>2^{1,257,787}-1</math> | ||
| − | | 1996-09-03 | ||
|} | |} | ||
Revision as of 15:40, 22 January 2019
|
This article is only a stub. You can help PrimeWiki by expanding it. |
David Slowinski had been a computer scientist at Cray Research starting in 1977 until about 1999. He had searched for Mersenne primes using Cray supercomputers (using the software that he wrote) and has been involved in the discovery of seven Mersenne primes, namely:
| Name | Value | Discovery date |
|---|---|---|
| M27 | [math]\displaystyle{ 2^{44,497}-1 }[/math] | 1979-04-08 |
| M28 | [math]\displaystyle{ 2^{86,243}-1 }[/math] | 1982-09-25 |
| M30 | [math]\displaystyle{ 2^{132,049}-1 }[/math] | 1983-09-19 |
| M31 | [math]\displaystyle{ 2^{216,091}-1 }[/math] | 1985-09-01 |
| M32 | [math]\displaystyle{ 2^{756,839}-1 }[/math] | 1992-02-17 |
| M33 | [math]\displaystyle{ 2^{859,433}-1 }[/math] | 1994-01-04 |
| M34 | [math]\displaystyle{ 2^{1,257,787}-1 }[/math] | 1996-09-03 |
He stated that Cray had "lost its way", so he left. Since that time he has had a metal machining shop for about 5 years. He changed from metal to wood and has since been involved in CNC wood routers (~2005 - active as of 2011). He also is involved in other endevours.
It is believed that he currently participates in GIMPS.
