Explanation of the notation on the Pages and the Champion Page.
The Fermat Prime Divisors ( A new link in 2017)
The Third Edition of The Cunningham Book.
The Joy of Factoring,
a new factoring book.
The book cover.
The triplets are Purdue fans.
Some corrections and comments.
Review at Math Reviews.
Review at Math Assn of America.
Review at mersenneforum.
Review in CHOICE magazine.
According to AMS' twitter feed, The Joy of Factoring was selected as a 2014 CHOICE magazine Outstanding Academic Title.
Press release for the 2012 discovery of 75- and 79-digit primes by the Elliptic Curve Method.
The "Wanted" lists issued May 10, 2016.
The Champions and First Five Holes as of October 24, 2016.
The Main Tables as of June 26, 2017 (899K bytes). This is the latest version. These tables include all factors through # 6416 on Page 133.
Appendix A as of June 26, 2017 (1411K bytes). (The counts of additional primes in the main tables have not been updated.)
Appendix C as of June 26, 2017 (260K bytes).
Extensions to the Cunningham tables.
Page 133 (the latest page).
Page 132 (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.
Factoring News from Brazil (a joke in Portuguese)
Send e-mail to Sam Wagstaff