$4^{-7} \times 4^{4} = 4$

$\left(6^{-3}\right)^{7} = 6$

$\dfrac{6^{2}}{6^{5}} = 6$

$\dfrac{7^{-3}}{7^{-4}} = 7$

$\dfrac{6^{1} \times 6^{-2}}{6^{1}} = 6$

$\dfrac{7^{-4}}{7^{2}\times 7^{1}} = 7$

$\dfrac{7^{-2} \times 7^{5}}{7^{-3}\times 7^{-5}} = 7$

$\dfrac{\left(10^{4}\right)^{1}}{10^{-4}} = 10$

$\dfrac{5^{-2}}{5^{-2}\times 5^{1}} = 5$

$5^{-7} \times 5^{4} \times 5^{2} = 5$