Given a system, a number N, represent item #, and several numbers that represent the factor that it will process the item # if the item can be a multiple of it. Found that how many items cannot be processed?
Ex: Given [2, 5] and N = 10.
2, 4, 6, 8, 10, 5 can be process the remaining number is 1 3 7 9, so return 4.