According to GIMPS, this is the first time a prime number was not found by an ordinary PC, but rather a “‘cloud supercomputer’ spanning 17 countries” that utilized an Nvidia A100 GPU chip to make the initial diagnosis. The primary architect of this find is Luke Durant, who worked at Nvidia as a software engineer for 11 years
https://youtu.be/zsyGRDrDfbI
New math came out of it, they figured out more and more efficient ways to figure out the solution to “is this prime?”
Those same math techniques can be used for other problems, and possibly learn something that solves a problem you actually care about.
Research is important because you never know what weird problem someone is working on might solve. Maybe it will provide a new math solution that creates better CGI, maybe it’ll finally create a technique to solve fusion.
Maybe it’ll just be something that we know now that we didn’t know before. There are FAR FAR FAR more wasteful things in the world than some nerds trying to solve big prime numbers.