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Category:  Main » Science » Math » Number Theory » Factoring

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On a Generalization of Perfect Numbers Popularity:    Hit: 137
Details:
J. L. Pe introduces perfect numbers relative to an arithmetical function f. Under this scheme, the usual perfect numbers are just one among many species of "f-perfect numbers". Several open problems and examples of perfect number sets are given, as well as a few f-amicable pairs.

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URL: http://www.geocities.com/windmill96/fperfect/fperfect.html
Title: On a Generalization of Perfect Numbers
Description: Science, Math, Number Theory, Factoring - On a Generalization of Perfect Numbers. J.
Specialized in:

 
Factoris (Popularity: ): Online calculator that factorizes large numbers, specified by formula.
The Factor Zone (Popularity: ): Aimed at grade school students and teachers, includes course guidelines, worksheets, and factor tables up to 600.
Sierpinski Problem (Popularity: ): Sierpinski proved there exist infinitely many odd integers k such that k*2^n+1 is composite for every n. Ray Ballinger coordinates ...
I Love Binary, Primes, and Factors (Popularity: ): Divisibility, primes and binary numbers.
Factorization Using the Elliptic Curve Method (Popularity: ): Java applet that can be used to find 20- or 30-digit factors of numbers or numerical expressions up to 1000 ...
Fermat Search (Popularity: ): Leonid Durman's Fermat number factoring site and program.
FactorWorld (Popularity: ): Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
Factorization of RSA-155 (Popularity: ): Announcement of factorization of a 512-bit RSA key using the General Number Field Sieve (GNFS).
Factoring Papers (Popularity: ): Links to papers on the theory and practice of factoring.
Factorizations of Near-repdigit Numbers (Popularity: ): Factorizations of numbers composed of all the same digit except first and/or last.


Popular Sites
On a Generalization of Perfect Numbers (Popularity: ): J. L. Pe introduces perfect numbers relative to an arithmetical function f. Under this scheme, the usual perfect numbers are ...
The Factor Zone (Popularity: ): Aimed at grade school students and teachers, includes course guidelines, worksheets, and factor tables up to 600.
Fermat Search (Popularity: ): Leonid Durman's Fermat number factoring site and program.
FactorWorld (Popularity: ): Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
Factoris (Popularity: ): Online calculator that factorizes large numbers, specified by formula.


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