Add Yahoo as a preferred source to see more of our stories on Google. We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple ...

A seemingly straightforward math problem has sparked debate online after leaving social media users confused over the correct answer. The brain teaser, which appears simple at first glance, has ...

A new proof about prime numbers illuminates the subtle relationship between addition and multiplication — and raises hopes for progress on the famous abc conjecture. One morning last November, the ...