OpenNumber Theory·1742
Goldbach's Conjecture
Every even integer greater than 2 should be expressible as a sum of two primes.
Goldbach's conjecture is one of the oldest famous open problems in additive number theory. Its statement is elementary, but a complete proof remains unknown.
Summary
Goldbach's conjecture is one of the oldest famous open problems in additive number theory. Its statement is elementary, but a complete proof remains unknown.