You'll often see the 7-7-7 winning combination mentioned, as well as the number 7 appearing as a traditional slot game symbol often representative of the most impressive prizes the game has to offer. When it comes to the number 7 and gambling, it is widely believed that it's the fairest number to predict.
To increase your chances of winning, choose slots with higher Return to Player (RTP) percentages, play games with low volatility if you prefer more frequent wins, and make use of casino bonuses and promotions to extend your playtime.