1. The problem is to simplify the expression where the first \(a\) is on the 2 and the second \(a\) is on the top with 3, which suggests the expression is \(a^{2a^3}\). 2. The expression \(a^{2a^3}\) means \(a\) raised to the power of \(2a^3\). 3. There is no further simplification possible without knowing the value of \(a\). 4. So the simplified expression remains \(a^{2a^3}\). Final answer: \(a^{2a^3}\).