What you have to believe is that somehow the entire field of math was just leaving open problems on the ground that were actually easily solvable and were essentially free Fields Prizes, tickets to a lifetime of Fame and Academic superstardom. Orr LLMs are actually doing something novel.
>Maybe some of them are like finding the 1 millionth digit of pi.
Yes some of them were clearly like that but there are probably 5-10 which many mathematicians have said were massive results and would all but guarantee a Fields Medal to any human that had solved them. Navier Stokes, Quasi Riemann, etc.