3.1: 3, 5, 11, 17, 20-23, 25, 27, 33

3.2: 3, 7, 13, 17, 21

3.3: 3, 11, 17, 21

3.4: 1, 5, 11, 15, 26

3.5: 1, 5, 11, 17, 23

3.6: 1, 3, 7, 15 & 23, 29