During the 2016–2020 timeframe, the lottery followed these standard parameters: : Players select 6 numbers from a pool of 1 to 49.

"Data HK" is a term frequently used by enthusiasts to refer to the structured output of winning numbers. The data is often categorized into "4D" or "6D" formats, depending on the specific draw structure being analyzed.

For those looking to analyze the 2016–2020 data rather than just view it, Lottery.hk offers statistical tools that identify: