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发表于 2005-3-5 17:36:13
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以下内容转自 GIMPS 官方主页：http://www.mersenne.org/
42nd Known Mersenne Prime Found!
On February 18, 2005, Dr. Martin Nowak from Germany, found the new largest known prime number, (2^25,964,951)-1. The prime number has 7,816,230 digits! It took more than 50 days of calculations on Dr. Nowak's 2.4 GHz Pentium 4 computer. The new prime was independently verified in 5 days by Tony Reix of Grenoble, France using a 16 Itanium CPU Bull NovaScale 5000 HPC running the Glucas program by Guillermo Ballester Valor of Granada, Spain.
Dr. Martin Nowak, an eye surgeon in Michelfeld, Germany learned of GIMPS in April 1999 when he read an article his local newspaper, the "Frankfurter Allgemeine Zeitung". Dr. Nowak, a math hobbyist, started with one PC and as his practice grew so did his participation in GIMPS. Six years later, he has 24 computers doing calculations for GIMPS -- and one Mersenne Prime to his credit!
Perfectly Scientific, Dr. Crandall's company which developed the FFT algorithm used by GIMPS, makes a poster you can order containing the entire number. It is kind of pricey because accurately printing an over-sized poster in 1-point font is not easy! Makes a cool present for the serious math nut in your family.
Dr. Nowak could not have made this discovery alone. In recognition of contributions made by tens of thousands GIMPS volunteers, credit for this new discovery will go to "Nowak, Woltman, Kurowski, et al". The discovery is the
eighth record prime for the GIMPS project. Join now and you could find the next record-breaking prime! You could even win some cash.
For more information on this latest prime discovery read the full press release. |
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发表于 2005-3-5 17:18:19
发表于 2005-3-5 18:57:09
OurSci News Staff 
