14. In the 3D history, the maximum number of missing periods in the third group is 14. A group 3 number in 3D means that there are two identical combinations among the three numbers. Because of its specific combination, the probability of group three numbers appearing is lower than that of ordinary 3D numbers. In the lottery game, the number of missing cycles of three groups of numbers will be longer. The biggest 3-D group in history has reached an astonishing 14. This means that there is no lottery number of the third group in the 14 serial lottery. This situation is relatively rare in lottery games, but it is precisely because of its rarity that some lottery players have high expectations for the opening of the third group number.