Any other coins like Primecoin?

I remember the days when mining XPM was still a thing. The cryptocurrency had an innovative approach to PoW by using prime numbers instead of traditional hashing algorithms. As of now, the Primecoin project is inactive with little support from mainstream crypto exchanges.

I was wondering if there are other XPM alternatives that are based on prime numbers? These days the industry is focused on speculative “meme” coins, and worthless NFTs, so it’s hard to find projects that are truly-innovative. Especially on the PoW side, when the market is largely-composed by PoS coins.

If you know of any other coins like Primecoin, please let me know.