8.1:  3, 5, 11, 23, 27, 41, 45, 55

8.2:  1, 3, 9, 10, 11, 15, 19, 23, 37, 41, 47, 61-63

8.3: 1, 3, 9, 13, 15, 17, 29, 33

8.4: 1, 3, 5, 11, 15, 21, 23, 42

8.5:  1, 3, 5, 13, 15, 26, 31, 36

8.6:  1, 3, 5, 7, 13, 23, 27, 32, 37

8.7:  2, 7, 11, 17, 25 (see #7), 35, 39, 43, 47 (see #43)

8.8:  1, 3, 7, 11, 15, 23, 27