$2^{2} \times 2^{3} = 2$

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

$5^{-5} \times 5^{3} = 5$

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

$6^{-4} \times 6^{4} = 6$

$\dfrac{10^{7} }{ 10^{4} } = 10$

$\dfrac{7^{3} }{ 7^{9} } = 7$

$\dfrac{10^{-4} }{ 10^{2} } = 10$

$\dfrac{3^{2} }{ 3^{-3} } = 3$

$\dfrac{7^{-6} }{ 7^{-4} } = 7$

$\left(5^{7}\right)^{-2} = 5$

$\left(2^{-3}\right)^{-5} = 2$

$\left(10^{-3}\right)^{0} = 10$

$\left(9^{-1}\right)^{3} = 9$

$\left(7^{-1}\right)^{-2} = 7$

$3^{4} \times 7^{4} = $ $ ^{4}$

$10^{2} \times 7^{2} = 70$

$8^{5} \times 6^{5} = $ $ ^{5}$

$4^{6} \times 5^{6} = 20$

$\left(\dfrac{3 }{ 19}\right)^{6} = $ $3$$19$$ $

$\dfrac{21^{7} }{ 7^{7}} = $ $ ^{7}$

$\left(\dfrac{2 }{ 3}\right)^{4} = $ $2$$3$$ $

$\dfrac{22^{5} }{ 11^{5}} = $ $ ^{5}$