PSI news

• New poster! New largest prime number! The prime is 230402457-1, discovered in December 2005.
• New hardware! Explore the bTop Mac OS X interface for data acquisition & control.
  • Read the press release.
  • Join the mailing list.
  • Listen to George Storm and Chuck Joiner discuss the bTop-1 interface board on The User Group Report from The MUG Center.
  • George Storm builds a Mac Mini and the bTop-1 interface board into his robot to take 3rd place at the Advanced Developers Hands On Conference.
• Free software! PSI has new software for free download.
• New poster! New largest prime number! The prime is 225964951-1, discovered in February 2005.
• New largest prime number! — and we have a physical poster of all (over) 7.2 million decimal digits available. The prime is 224036583-1, discovered in May of 2004. For more information see www.mersenne.org. We have a low-cost poster, shipped in a sturdy tube, or a more expensive nicely framed version that can serve as fine decorations.
• PrimeKit, our Mathematica support code for all algorithms in Prime Numbers book (below) is now available. Book has 112 algorithms, so PrimeKit has 112 programs!
• Special news: PrimeKit now has, beyond its over-one-hundred algorithm implementations in Mathematica, a C-code implementation of the (already!) celebrated AKS primality test. For more information see the article: Prime pursuit in the October, 26 2002 issue of Science News.
• Prime Numbers textbook by R. Crandall and C. Pomerance is now out in its second printing (Summer 2002) which has various updates, clarifications, and corrections.
• Our founder and computationalist D. Bailey have published a theory of random digits in fundamental numbers like Pi. For more information see the following links:
  http://www.nature.com/nsu/010802/010802-9.html
  http://www.sciencenews.org/20010901/bob9.asp
  http://sciencenow.sciencemag.org/cgi/content/full/2001/727/1
  http://www.sciencemag.org/cgi/content/summary/293/5531/793
  Relevant technical papers may also be found from R. Crandall here.
• New poster! Now for sale: Earth-lights poster, PSI's version of the NASA composite of Earth's night lights.
• Projects in Scientific Computation (1994) textbook by our founder has been reprinted in paperback.
• Great computations article from March 4, 2000 of Science News.