Verified Answer :

5555555555555

if that isn't good enough, you can group together some of the fives :3

Answer:

We will use this law of indices to write the multiplication expression with a product of \(5^{13}\).

 Which is

 \(\rightarrow x^a \times x^b=x^{a+b}\)

So, \(1.\rightarrow 5^{13}=5^2 \times 5^3 \times 5^8 \\\\2.\rightarrow 5^{13}=5^2 \times 5^4 \times 5^7\)

We can write many more multiplication expressions.