Untuk setiap a, p, q bilangan bulat, berlaku:

(a^p)^q = a^p$\times$q 

a^p $\times$ a^q = a^p+q

$\frac{a^n}{b^n}=\left(\frac{a}{b}\right)^n$

$\frac{1}{a^n}=a^{-n}$

$\frac{19^5}{5^7}$

= $\frac{19^5}{5^{5+2}}$

= $\frac{19^5}{5^5\times5^2}$

= $\frac{19^5}{5^5}$$\times$$\frac{1}{5^2}$

= ($\frac{19}{5}$)⁵ $\times$ 5^-2