Goldbach conjecture

Importance: Outstanding ✭✭✭✭
Author(s): Goldbach, Christian
Keywords: additive basis
Recomm. for undergrads: no
Posted by: Benschop
on: November 20th, 2007

\begin{conjecture} Every even integer greater than 2 is the sum of two primes. \end{conjecture}

This famous conjecture is one of the oldest unsolved problems in mathematics. It arose originally out of a correspondence (1742) between Goldbach and Euler. See \Def[Wikipedia's Goldbach's conjecture]{goldbach's conjecture} for more.

Weak conjecture now solved

Note that Harald Helfgott has proved the ternary version of Goldbach's conjecture, that every odd number greater than 7 is the sum of three odd primes. See (minor arc estimates) and (major arc estimates).

Goldbach conjecture

Those interested in a suggestion for a proof via semigroup theory and carry extension, see: "Additive structure of Z(.) mod [\prod first k primes], with carry extension to prime pair sums". - (10 pgs, submitted for publication)

Goldbach conjecture

In addition to the above link to the paper with Goldbach-Conj. proof, the abstract and links to an intro-article are at

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