7 Hardest Math Problems in History — Solved & Unsolved Explained Simply

Day 8: Riemann Solved The Riemann Hypothesis is a famous unsolved problem in mathematics, proposed by Bernhard Riemann in 1859. It conjectures that all non-trivial zeros of the Riemann zeta function, a complex function pivotal to number theory, have a real part equal to 1/2. This hypothesis has deep implications for the distribution of prime numbers. It is one of the seven Millennium Prize Problems, and the Clay Mathematics Institute offers a $1 million prize to anyone who provides a correct pro