To express 5 to the power of 4, you write it as 54.
This notation indicates that you multiply the number 5 by itself a total of 4 times. So, you calculate it as follows:
5 × 5 × 5 × 5
When you perform the multiplication, it breaks down like this:
5 × 5 = 25
25 × 5 = 125
125 × 5 = 625
Therefore, 54 = 625. This is how you express and calculate 5 to the power of 4.