1:Fill in the blank to describe the set of all possible public RSA keys (omit all unnecessary symbols):

{(e,n) | n = ____ such that p and q are prime and e is relatively prime to (p-1)(q-1)}.

2:Fill in the blank: If A = {x | x is an odd natural number} and B = {x | x is a natural number divisible by 7}, then the intersection of A and B is {x | x is an odd natural number _____ x is divisible by 7}. (Use a word or the symbol for that word we have covered in this class. Case does not matter. We are not looking for "intersect.")