Online Beal Conjecture Counterexample Checker

Beal's Conjecture is that:

If you can prove the conjecture to be true (or false), you will win a million dollar prize. I can't help you with a proof.

You also win the prize if you can come up with a counterexample. A valid counterexample must have these properties:

If you have a purported counterexample, you can check it here. Enter values for A, x, B, y, C, z and hit the Check button.

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Peter Norvig