Despite the greatest strides in mathematics, these hard math problems remain unsolved. Take a crack at them yourself.

There weren’t calculators or computers in medieval Europe. But there were math duels. Mathematicians would gather in public squares and pose tricky math problems to each other. Then they raced to ...

I’ve been out of school for decades, and I don’t spend my days solving equations (I’m more of a word person). Still, I like to think I have a solid grip on basic math: I can usually gauge whether a ...

Add Yahoo as a preferred source to see more of our stories on Google. In September 2019, news broke regarding progress on this 82-year-old question, thanks to prolific mathematician Terence Tao. And ...