| 1. | Factors | | | Lists the factors of every single number up to 600, for quick reference and as a resource for students.
factorzone.tripod.com |
| 2. | 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 |
| 3. | 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 |
| 5. | 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 |
| 6. | Fermat Factoring Status | | | Compiled by Wilfrid Keller, lists the known prime factors and complete factorizations of Fermat numbers.
www.prothsearch.net |
| 7. | Factors of 2^n + or - 1 | | | Factorizations for values of n up to 10000, extending the results of the Cunningham Project.
www.euronet.nl |
| 8. | 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 |
| 10. | Factors of Numbers near Googolplex | | | This table includes all known prime factors of the numbers in the range 10^(10^100) to 10^(10^100)+999, including more than 57000 prime factors of googolplex + 10.
www.alpertron.com.ar |
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