Math Number Theory Open Problems

• ABC Conjecture
• Catalan Conjecture
• Collatz Problem
• Goldbach Conjecture
• Lychrel Numbers

• L-functions and Random Matrix Theory  - Information includes conjectures and open problems concerning L-functions and random matrix theory. With random matrix questions.
• Mathematician's Secret Room  - Provides challenges in the problems of number theory. With a discussion on various subtopics in number theory.
• Number Theory Conjectures  - Presents a collection of number theory conjectures, the Riemann hypothesis, and the twin primes conjecture and prime gaps. Includes Catalan's Conjecture information.
• Unsolved Problems and Rewards  - Contains challenging problems, gives a reward to those who can publish a solution. Presents some problems solved by some of the users.