Primes and Primitive Sets: an Erdos Conjecture is cracked (2022) [video] (youtube.com)

This appears as the 2nd-last solved conjecture on the List of conjectures by Paul Erdős [1] with 3 references, the first being Jared's paper [2], the 2nd a quanta magazine article [3] and the 3rd this Numberphile video.

[1] https://en.wikipedia.org/wiki/List_of_conjectures_by_Paul_Er...

[2] https://arxiv.org/abs/2202.02384

[3] https://www.quantamagazine.org/graduate-students-side-projec...