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

Decades-Old, Infinitely Large Math Problem Gets Surprisingly Neat Solution Normally, when you attempt a problem of this size, you're not expecting the answer to just be "15".

The International Math Olympiad (IMO) is a brainy battleground where the world’s most talented teenage mathematicians wrestle with devilishly difficult math problems. It’s long been considered ...

AI has, for seemingly the first time, solved a famously difficult math problem — and folks, this discovery is huge if true.

An experimental LLM from OpenAI solved some of the world's hardest math problems at the 2025 International Math Olympiad, the company said.