What is Log Base 4 of 256?

The below is the work with steps to find what is log base 4 of 256 shows how the input values are being used in the log base 4 functions. Formula:
log_b(x) = y, if b^y = x

Input:
x = 256
b = 4

Solution:
y = log₄ 256
= log₄ 4⁴
= 4 log₄ 4 = 4 x 1
log₄ 256 = 4
log₄(256) = 4