The Collatz Conjecture is a famously unsolvable math problem, where you take a number and if it's an odd number, you triple it and add one, and if it's even, you halve it. The conjecture says that all numbers will eventually reach 1, (and then get stuck in the 4, 2, 1 loop) but there's no way to prove it. Test the conjecture for yourself by inputting a whole number and watching!
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