The Cunningham Project


Introduction to The Cunningham Project

Explanation of the notation on the Pages and the Champion Page.

The Known Mersenne Primes
The Largest Known Primes

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.
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 January 30, 2016.

The Champions and First Five Holes as of January 30, 2018.

The Main Tables as of May 30, 2018 (899K bytes). This is the latest version. These tables include all factors through # 6474 on Page 135.

Appendix A as of May 30, 2018 (1411K bytes). (The counts of additional primes in the main tables have not been updated.)

Appendix C as of May 30, 2018 (260K bytes).

Extensions to the Cunningham tables.

Page 135 (the latest page).

Page 134 (the previous page).

Who is factoring which number now.

Old Pages

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


(This page last modified May 30, 2018)