A review of Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics, by John Derbyshire. With the proof of Fermat’s Last Theorem in 1994, Derbyshire says, “the Riemann ...

Prime numbers might just have lost their mystery – and online security could change forever. At a basic level, prime numbers are relatively simple to understand. They can only be divided by themselves ...

Number theorist Yitang Zhang, who went from obscurity to luminary status in 2013 for cracking a century-old question about prime numbers, now claims to have solved another. The problem is similar to — ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For many people ...

A shard of smooth bone etched with irregular marks dating back 20,000 years puzzled archaeologists until they noticed something unique – the etchings, lines like tally marks, may have represented ...