Tygrys.com - katalog stron : Science : Math : Number Theory : Factoring

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Znaleziono 17 stron w kategorii Factoring:

Tytuł strony: Discovery of a Lost Factoring Machine
Opis strony: Built by a French amateur, E.-O. Carissan, around 1919. Shallit, Williams and Morain include photographs and references to their paper.
Adres: http://www.cs.uwaterloo.ca/~shallit/Papers/carissan.html

Tytuł strony: The Factor Zone
Opis strony: Aimed at grade school students and teachers, includes course guidelines, worksheets, and factor tables up to 600.
Adres: http://factorzone.tripod.com/

Tytuł strony: Factoring Papers
Opis strony: Links to papers on the theory and practice of factoring.
Adres: http://www.crypto-world.com/FactorPapers.html

Tytuł strony: Factoris
Opis strony: Online calculator that factorizes large numbers, specified by formula.
Adres: http://wims.unice.fr/~wims/wims.cgi?lang=en&module=tool/algebra/factor.en&cmd=new&

Tytuł strony: Factorization Using the Elliptic Curve Method
Opis strony: 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 sum of up to four squares.
Adres: http://www.alpertron.com.ar/ECM.HTM

Tytuł strony: Factorizations of Near-repdigit Numbers
Opis strony: Factorizations of numbers composed of all the same digit except first and/or last.
Adres: http://homepage2.nifty.com/m_kamada/math/factorizations.htm

Tytuł strony: FactorWorld
Opis strony: Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
Adres: http://www.crypto-world.com/FactorWorld.html

Tytuł strony: Fermat Search
Opis strony: Leonid Durman's Fermat number factoring site and program.
Adres: http://www.fermatsearch.org/

Tytuł strony: I Love Binary, Primes, and Factors
Opis strony: Divisibility, primes and binary numbers.
Adres: http://home.earthlink.net/~usondermann/binary.html

Tytuł strony: Integer Factorization
Opis strony: Paul Leyland's list of his own and other factorisations.
Adres: http://www.leyland.vispa.com/numth/factorization/main.htm

Tytuł strony: Known Amicable Pairs
Opis strony: 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.
Adres: http://amicable.homepage.dk/knwnc2.htm

Tytuł strony: N!+-1 Factoring Status
Opis strony: Factoring efforts that have been made so far on numbers of the form n!+-1 using ECM factoring.
Adres: http://www.uow.edu.au/~ajw01/ecm/curves.html

Tytuł strony: RSA Laboratories Factoring Challenge
Opis strony: 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.
Adres: http://www.rsasecurity.com/rsalabs/node.asp?id=2092

Tytuł strony: Sierpinski Problem
Opis strony: 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.
Adres: http://www.prothsearch.net/sierp.html

Tytuł strony: The XYYXF Project
Opis strony: A collaborative project to produce the factorizations of x^y + y^x for 1<y<x<101.
Adres: http://xyyxf.at.tut.by/

Tytuł strony: Factoring Fermat Numbers
Opis strony: Cash prizes for new factors of Fermat numbers Fn, for n = 12 through 22. <small>(December 31, 2004)</small>
Adres: http://www.perfsci.com/freegoods.htm#fermat

Tytuł strony: Factorization of RSA-155
Opis strony: Announcement of factorization of a 512-bit RSA key using the General Number Field Sieve (GNFS). <small>(August 22, 1999)</small>
Adres: http://www.crypto-world.com/announcements/RSA155.txt

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