Know Texas Hold'em hands, what beats what, and when to fold. A royal flush...
https://kilo-wiki.win/index.php/Royal_Flush_Odds:_%E2%80%9C1_in_649,739%E2%80%9D_Explained_in_Plain_English
Know Texas Hold'em hands, what beats what, and when to fold. A royal flush comes once in 649,739 hands