(from Wikipedia: Collatz Conjecture )

The

**3x+1 problem**is a conjecture in mathematics which can be summarized as follows:

Take any positive integer

*n*. If

*n*is even, divide it by 2 to get

*n*/ 2. If

*n*is odd, multiply it by 3 and add 1 to obtain 3

*n*+ 1. Repeat the process indefinitely. The conjecture is that no matter what number you start with, you will always eventually reach 1.

Image from Wikipedia:

Try yourself the Collatz Conjecture with this tool:

https://www.youtube.com/watch?v=LqKpkdRRLZw

And The briliant response to this video by Adrian Wadley:

Video Answer by: Video from: Adrian Wadley

**@wadleysf**

:

https://www.youtube.com/watch?v=RzQE2Q7lsT4

Another way to show the Collatz Tree by: Matei Copot:

Post made after a collection of messages on twitter: https://twitter.com/macajo/status/869506214891315201