Collatz Conjecture Tree
Every positive integer eventually reaches 1 — or so it seems
Explore a Number
Starting number:
Trace Sequence
111
Steps
9232
Peak value
Sequence:
27 → 82 → 41 → 124 → ...
Tree depth:
6
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Collatz rule:
If n is even: n → n/2
If n is odd: n → 3n + 1
Conjecture: all positive integers eventually reach 1. Verified up to 2.95 × 10²⁰ but unproved.
Colors show
stopping time
(steps to reach 1) — brighter = longer path.