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Factoring (43)
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- Top/Computers/Computer Science/Distributed Computing/Projects/Cryptography
- Top/Science/Math/Number Theory/Computational
Built by a French amateur, E.-O. Carissan, around 1919. Shallit, Williams and Morain include photographs and references to their paper.
http://www.cs.uwaterloo.ca/~shallit/Papers/carissan.html
Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
http://www.crypto-world.com/FactorWorld.html
Cash prizes for new factors of Fermat numbers Fn, for n = 12 through 22.
http://www.perfsci.com/freegoods.htm#fermat
Links to papers on the theory and practice of factoring.
http://www.crypto-world.com/FactorPapers.html
Online calculator that factorizes large numbers, specified by formula.
http://wims.unice.fr/~wims/wims.cgi?lang=en&module=tool/algebra/factor.en&cmd=new&
Java applet that can be used to find 20- or 30-digit factors of numbers or numerical expressions up to 1000 digits long. It also computes the number and sum of divisors, the Euler's totient and moebius functions, and the decomposition of the number in a s
http://www.alpertron.com.ar/ECM.HTM
Announcement of factorization of a 512-bit RSA key using the General Number Field Sieve (GNFS).
http://www.crypto-world.com/announcements/RSA155.txt
Factorizations of numbers composed of all the same digit except first and/or last.
http://homepage2.nifty.com/m_kamada/math/factorizations.htm
Leonid Durman's Fermat number factoring site and program.
http://www.fermatsearch.org/
Divisibility, primes and binary numbers.
http://home.earthlink.net/~usondermann/binary.html
Paul Leyland's list of his own and other factorisations.
http://www.leyland.vispa.com/numth/factorization/main.htm
A listing of all the known pairs of numbers, each of which is the sum of the aliquot divisors of the other. Complete for smaller numbers, and extending beyond 200 digits.
http://amicable.homepage.dk/knwnc2.htm
Numbers representative of those used in the RSA cryptosystem are offered for factor attempts with prizes. A Partition List challenge is also provided in order to encourage work on factoring in general.
http://www.rsasecurity.com/rsalabs/node.asp?id=2092
Sierpinski proved there exist infinitely many odd integers k such that k*2^n+1 is composite for every n. Ray Ballinger coordinates a search to prove or disprove whether k=78557 is the smallest solution.
http://www.prothsearch.net/sierp.html
Aimed at grade school students and teachers, includes course guidelines, worksheets, and factor tables up to 600.
http://factorzone.tripod.com/
A collaborative project to produce the factorizations of x^y + y^x for 1<y<x<101.
http://xyyxf.at.tut.by/
Last Updated: 2007-01-02 17:54:40
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The content of this directory is based on the Open Directory and has been modified by AllMusicSearch.com editors
