I would like to use the IEnumerable function Intersect() to combine a few list and get the similar integers from each list. The problem I'm faced with is that I don't know how many list I will need to compare.

Here is an example:

A{1,2,3,4} B{1,2,3} C{1,2}

results = A.Intersect(B).Intersect(C)

This works great, but the next time around I may have a D{1,2} next time I come across the function.

I'd like to use the Intersect method, but I'm open to new ideas as well.