7.7) 3, 5, 7, 11, 15, 23, 29, 45, 51
8.2) 3, 7, 11, 13, 23, 29
8.3) 5, 11, 17, 25, 29
8.4) 3, 7, 15, 23, 27, 33
8.5) 3, 5, 9, 13, 15, 21, 23, 31, 33, 35