what are the mains creterions taken by mathematical community to judge that if an open problem is most and important?

I'm confused for one thing that is :what are the mains creterions taken by

mathematical community to judge that if an open problem is most and important

problem among many others open problems in mathematics , for example if we say

that :Riemann Hypothesis is important problem as it is related to the prime

distributions , are all mathematical topics based for primes distribution ?

I would be interest like someone show me what are the main creterion taken by

mathematics community to set if an open problem is important then others.

Thank you for any replies or any comments.