1, mathematical algorithm: There are some mathematical algorithms that can be used to predict the next lottery number, such as 24-point algorithm, 99 algorithm and 25 algorithm. The basic principle of the algorithm is to find some rules by calculating and analyzing the lottery numbers of the previous issue, and then use these rules to infer the lottery numbers of the next issue.

2. Kill number formula: Some kill number formulas can be used to exclude some wrong numbers, thus narrowing the range of number selection.