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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.
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.
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.
Factorization Results
- Tables, summaries, and links to many factoring endeavors, including primorials, factorials, and cyclotomic polynomials. Includes theorems and descriptions behind each project.
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.
Factorization of Generalized Repunits
- Andy Steward's research into the form (b^n-1)/(b-1).
Factors
- Lists the factors of every single number up to 600, for quick reference and as a resource for students.
Factors of 2^n + 1
- Factorizations for prime values of n up to 5000, extending the results of the Cunningham Project.
Fermat Factoring Status
- Compiled by Wilfrid Keller, lists the known prime factors and complete factorizations of Fermat numbers.
Fibonacci and Lucas Factorizations
- Tables of known factorizations of the first 10,000 Fibonacci and Lucas numbers.
Prime Factorization of Cyclotomic Numbers
- Professor Mitsuo Morimoto extends the factor tables of cyclotomic numbers for values of phi(n) up to 120.
Smarandache Factors
- Micha Fleuren's summary of the state of factorization of Smarandache and Reverse Smarandache numbers.
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