The Collatz conjecture(or 3x+1) a famous unsolved mathematics problem, and it is not definitive proven/disproveen. Heres the problem: let x be any positive integer, now set these two rules, If x is odd, then times the number by 3 and add 1 If x is even, then divide the number by 2 Try out with different numbers and see what happens. https://turbowarp.org/1268736285/editor?interpolate for some data
"Mathematics may not yet ready for such problems" - Paul Erdos