Collatz Conjecture/Progress

Collatz Conjecture: Progress

As of $7$th March $2017$, all numbers up to $2^{60}$ had been tested, and all were found to end in $1$.

According to 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.), at that point all numbers had been tested up to $10^20$.


Sources

  • 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): Collatz conjecture