Odd number: Multiply by 3 and add 1 Even number: Divide by 2 Keeps doing it to the last number until it reaches 1 (where it would go in a loop of 4, 2, and 1 if it continued)
Veritasium has a good video explaining it https://www.youtube.com/watch?v=094y1Z2wpJg This is also called: Kakatuni's Problem, Syracuse Porblem, Thwaites Conjecture, or Hasse's Algorithm
