Number Theory
- 61
- Rational Points on Elliptic Curves
- A course by Jerrold Tunnell. An introduction to rational points on elliptic curves through examples.
- 62
- Torsion Points on Elliptic Curves
- Elementary introduction and brief explanation of some well-known results.
- 63
- FactorWorld
- Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
- 66
- Factorization Using the Elliptic Curve Method
- Java applet that can be used to find 20- or 30-digit factors of numbers or numerical expressions up to 1000 digits long. It also computes the number and sum of divisors, the Euler's totient and moebius functions, and the decomposition of the number in a sum of up to four squares.
- 67
- The Factor Zone
- Aimed at grade school students and teachers, includes course guidelines, worksheets, and factor tables up to 600.
- 68
- Factorization of RSA-155
- Announcement of factorization of a 512-bit RSA key using the General Number Field Sieve (GNFS). (August 22, 1999)
- 69
- The Prime Pages
- Prime number research, records and resources. Includes largest known primes, finding and proving primes, glossary, curios, links.
- 70
- The Prime Puzzles & Problems Connection
- Carlos Rivera's collection of problems and puzzles related to prime numbers.
- 71
- Animation of Eratosthenes' Prime Sieve
- An interactive animation of the sieve of Eratosthenes to obtain prime numbers (JavaScript required).
- 75
- Gebhard Glöggler
- Makes a statement about the number of primes between the squares of odd numbers, and provides a proof of Goldbach's conjecture.
- 76
- Introduction to Twin Primes and Brun's Constant
- An article by Pascal Sebah with the results of computation of the twin primes up to 5.10^15.