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**Perfect** **Numbers**

A detailed history of the quest for **perfect** **numbers**, from Euclid to their present-day Mersenne discoveries.

www-history.mcs.st-and.ac.uk/history/HistTopics/**Perfect**_**numbers**.html Science: Math: Number Theory: Factoring: Perfect Numbers

Multiply **Perfect** **Numbers**

Up-to-date information on multiperfect **numbers** and searchable database maintained by Achim Flammenkamp.

wwwhomes.uni-bielefeld.de/achim/mpn.html Science: Math: Number Theory: Factoring: Perfect Numbers

Multiply **Perfect** **Numbers**

Over 2000 multiperfect **numbers** sorted by numerical value and by factorisation.

-- ftp://ftp.cs.arizona.edu/xkernel/rcs/mpfn.html Science: Math: Number Theory: Tables

Jlpe's Number Recreations Page

Features original number recreations by the author, such as generalized **perfect** **numbers**, digital diversions, diophantine equations, didactic **numbers**, and number theory.

www.geocities.com/windmill96/numrecreations.html Science: Math: Recreations

Holdener, Judy

Kenyon College. Odd **perfect** **numbers**; theoretical morphology. Teaching technology, GAP projects.

www2.kenyon.edu/People/holdenerj/ Science: Math: Number Theory: People: H

Voight, John

University of California, Berkeley. Quadratic forms, **perfect** **numbers**.

math.berkeley.edu/~jvoight/ Science: Math: Number Theory: People: V

Odd **Perfect** **Numbers** - Missing Values

Status of various factorisations that would extend the known area of non-existence of odd **perfect** **numbers**, by Kevin Hare.

www.math.uwaterloo.ca/~kghare/ODDPERFECT/MissingValues.html Science: Math: Number Theory: Factoring: Perfect Numbers

**Perfect** **Numbers**

Harry J. Smith's pages of the mathematics behind **perfect** **numbers**, aliquot sequences and Mersenne **numbers**. Includes program listings and e-mail archives.

www.geocities.com/hjsmithh/**Perfect**.html Science: Math: Number Theory: Factoring: Perfect Numbers

On a Generalization of **Perfect** **Numbers**

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.

www.geocities.com/windmill96/fperfect/fperfect.html Science: Math: Number Theory: Factoring: Perfect Numbers

The **Perfect** Number Journey

A Mathematics Enrichment Workshop introducing **perfect** **numbers**. Lessons and exercises extend over several pages. Aimed at interested middle and high school students.

home1.pacific.net.sg/~novelway/MEW2/lesson1.html Science: Math: Number Theory: Factoring: Perfect Numbers

Cubes of Perfection

From Ivars Peterson's MathTrek column in MAA Online. Curious relationships satisfied by **perfect** **numbers**.

www.maa.org/mathland/mathtrek_5_18_98.html Science: Math: Number Theory: Factoring: Perfect Numbers

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