Explanation of the notation on the Pages and the Champion Page.
The Third Edition of The Cunningham Book.
The Joy of Factoring, a new factoring book. The book cover. Some corrections and comments.
Press release for the 2012 discovery of 75- and 79-digit primes by the Elliptic Curve Method.
The "Wanted" lists issued September 9, 2013.
The Champions and First Five Holes as of September 9, 2013.
The Main Tables as of September 9, 2013 (770K bytes). This is the latest version and includes the Base 6 extension. These tables include all factors through # 6209 on Page 126.
Appendix A as of September 9, 2013 (1258K bytes). (The counts of additional primes in the main tables have not been updated.)
Appendix C as of September 9, 2013 (157K bytes).
Extensions to the Cunningham tables.
Page 127 (the latest page).
Page 126 (the previous page).
Who is factoring which number now.
Paper "The Search for Aurifeuillian-Like Factorizations" which appeared in the journal Integers vol. 12A (2012), pp. 1449-1461.
Factor Calculator. It often works, but not always.
Factoring News from Brazil (in Portuguese)
Send e-mail to Sam Wagstaff