Question

15^7 divided by 15^4

Answer 1

15^7/15^4
when dividing exponents with the same base, u just subtract the exponents.
15^7 / 15^4 = 15^(7 - 4) = 15^3

Answer 2

Remember
$\frac{x^m}{x^n}=x^{m-n}$


so
$\frac{15^7}{15^4}=15^{7-4}=15^{3}$