It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A ...

When it came to math, it seemed that AI would only continue to struggle ... might one day act as a mathematical “copilot” in original research. In March, Quanta reported on how this is already ...

The original version of this story appeared in Quanta Magazine. For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message ...