The Joy of Factoring, a factoring book. The book cover. Some corrections and comments.
Cryptanalysis of Number Theoretic Ciphers
Bridge to Research slides from a lecture on February 24, 2020.
Mersenne Primes slides from a lecture on November 18, 2008.
The Invention of Public Key Cryptography slides from a lecture on October 21, 2008.
The Fermat Prime Divisors (A new link)
Photo of Wagstaff and the factorization of (3349 - 1)/2
Photo by Dave Umberger.
News story about factoring (3349 - 1)/2
Some elementary remarks about why factoring Cunningham numbers is important and interesting. Also shown there is the graph of the distribution function of the fractional parts of the Bernoulli numbers from the Erdos-Wagstaff paper.
