Edward Waring News Today

Gallery Sally Dan-Cuthbert, Sydney, presents works by artist Edward Waring.

Goldbach conjecture, in number theory, assertion (here stated in modern terms) that every even counting number greater than 2 is equal to the sum of two prime numbers. The Russian mathematician Christian Goldbach first proposed this conjecture in a letter to the Swiss mathematician Leonhard Euler in 1742. More precisely, Goldbach claimed that “every number greater than 2 is an aggregate of three prime numbers.” (In Goldbach’s day, the convention was to consider 1 a prime number, so his st...

Gallery Sally Dan-Cuthbert presents a group exhibition.

Four couples explain how fundamental differences in personality, lifestyle or upbringing have not stood in the way of happiness