6. \(\frac{a^{18} \cdot a^0}{a^6}\) при \(a=5\)

\(\frac{a^{18} \cdot a^0}{a^6} = \frac{a^{18+0}}{a^6} = \frac{a^{18}}{a^6} = a^{18-6} = a^{12}\). Подставим \(a=5\): \(5^{12} = 244140625\).