Press the flag to start. See inside to change value range. This is an example of the Collatz Conjecture. Which states any number following this algorithm will, if done forever will lead to 1. However it is not known if all numbers will really lead to one. You can test this out however by trying it out.
When setting the range to large numbers, numbers with the largest exponent will be much more abundant. This happens because there are more numbers with a bigger exponent than there are with a smaller exponent.