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Home / Science / Math / Number Theory / Factoring / Tables
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Web Sites
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- Brilliant Numbers - Tables of maximal and minimal numbers with two, three or four prime factors of the same length (in decimal notation).
www.alpertron.com.ar/BRILLIANT.HTM
- Cullen and Woodall numbers - Cullen numbers are of the form n.2^n + 1 and Woodall numbers are n.2^n - 1. These tables of Cullen and Woodall numbers include factorizations for n up to 1000.
research.microsoft.com/~pleyland/factorization/cullen_woodall/cw.htm
- Cunningham Project - Current status of the project to factor numbers of the form b^n +/- 1, b = 2, 3, 5, 6, 7, 10, 11, and 12 maintained by Samuel S. Wagstaff.
www.cerias.purdue.edu/homes/ssw/cun/index.html
- Factor Tables - Richard Brent's tables extend the scope of the Cunningham project (factoring b^n+-1) to all applicable bases b less than 100, plus some higher bases.
web.comlab.ox.ac.uk/oucl/work/richard.brent/factors.html
- Factorization of Cyclotomic Numbers - Hisanori Mishima is coordinating the search and producing tables of factorizations of cyclotomic numbers for values of phi(n) less than 48.
www.asahi-net.or.jp/~KC2H-MSM/cn
- Factorization of Generalized Repunits - Andy Steward's research into the form (b^n-1)/(b-1).
www.users.globalnet.co.uk/~aads
- Factorization Results - Tables, summaries, and links to many factoring endeavors, including primorials, factorials, and cyclotomic polynomials. Includes theorems and descriptions behind each project.
www.asahi-net.or.jp/~KC2H-MSM/mathland/matha1/index.htm
- Factors - Lists the factors of every single number up to 600, for quick reference and as a resource for students.
factorzone.tripod.com/factors.htm
- Factors of 2^n + 1 - Factorizations for prime values of n up to 5000, extending the results of the Cunningham Project.
www.euronet.nl/users/bota/medium-p.htm
- Factors of Modified Fermat Numbers - Factors of numbers of the form 4^(3^n)+2^(3^n)+1 and 4^(3^n)-2^(3^n)+1.
www.alpertron.com.ar/MODFERM.HTM
- Fermat Factoring Status - Compiled by Wilfrid Keller, lists the known prime factors and complete factorizations of Fermat numbers.
www.prothsearch.net/fermat.html
- Fibonacci and Lucas Factorizations - Tables of known factorizations of the first 10,000 Fibonacci and Lucas numbers.
home.att.net/~blair.kelly/mathematics/fibonacci
- Prime Factorization of Cyclotomic Numbers - Professor Mitsuo Morimoto extends the factor tables of cyclotomic numbers for values of phi(n) up to 120.
science.icu.ac.jp/~morimoto/enbunsu/table.html
- Smarandache Factors - Micha Fleuren's summary of the state of factorization of Smarandache and Reverse Smarandache numbers.
www.sci.kun.nl/sigma/Persoonlijk/michaf/ecm
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