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 ...

The Basel problem 25 is named from the Swiss city in whose university two of the Bernoulli brothers successively served as professor of mathematics (Jakob, 1687–1705, Johann, 1705–1748). I mentioned ...

For millennia, mathematicians have wondered whether odd perfect numbers exist, establishing an extraordinary list of restrictions for the hypothetical objects in the process. Insight on this question ...

Still, Larsen’s most recent obsession felt different, “longer and more intense than most of his other projects,” she said. For more than a year and a half, Larsen couldn’t stop thinking about a ...

A prime number discovery in December was made in the unlikeliest of places: on a church computer in a Memphis suburb. The background software running on the computer unearthed a rare kind of prime ...

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 ...

This month, GIMPS, the Great Internet Mersenne Prime Search, announced the discovery of the largest known prime number: 2^74,207,281-1. That's two, multiplied 74,207,281 times, with 1 ...

A Missouri professor, one of a team of nearly 100,000 volunteers, has found a highly unusual 17 million digit number -- and brought a prime-hunting project closer to a $150,000 prize. Stephen ...

For all of the recent strides we’ve made in the math world—like a supercomputer finally solving the Sum of Three Cubes problem that puzzled mathematicians for 65 years—we’re forever crunching ...

I. There should actually be a lot of algebra in this book, much more than I have been able to present. My focus has been on Bernhard Riemann and his work on prime numbers and the zeta function. That ...