This talk at Yale university delivered by Professor Alex Kontorovich is all about the great Riemann hypothesis. The Riemann hypothesis was proposed by Bernhard Riemann (1859) and it is a conjecture that the nontrivial zeros of the Riemann zeta function all have real part 1/2. Due to the difficulty of the problem and the implications of solving it, the hypothesis is often regarded as the greatest unsolved problem in mathematics. In this talk Alex Kontorovich briefly presents the history of the problem and what implications a solution to this problem would have. For more similar videos visit the links below.