Abstract: A system and an electronic apparatus for generating combinations of numbers for playing lottery games such as 6/36, 6/44 and 6/49. A keyboard allows the player to enter a series of preferred numbers from which the numbers of each combination are to be taken, and a redundancy index which determines the prize group required by the player. A processor with a memory generates combinations of numbers according to stored model combinations and a visual display informs the player of the selected mode of operation and of the status of the operation, and it displays the generated combinations. This type of device could also be decribed in a jargon term used by some lottery players as an electronic "wheeling system and apparatus". Other modes of operation are available to complement the combination generation function.