How to get primitive counts on each piece?

[yihh]

I made shatters from boolean and assembled them to different pieces.

How do I get the number of primitives on each piece with vex or by any other means? I am trying to delete the small pieces that I don't want.

[Butachan]

simply make a "for each piece" for loop and then in an primitive wrangle  write:

i@test = @numprim;