Question 30
Find all triples of non-negative integers $(x, y, z)$ satisfying the equation
$$
x! + 2^{y} = z!
$$
$$
x! + 2^{y} = z!
$$
MathNet 2023-part-02 — 191 problems (EN–VI) Question 30
Math Olympiad Vault · MathNet 2023-part-02 — 191 problems (EN–VI)