What is Log Base 3 of 72?

The below is the work with steps to find what is log base 3 of 72 shows how the input values are being used in the log base 3 functions. Formula:
log_b(x) = y, if b^y = x

Input:
x = 72
b = 3

Solution:
y = log₃ 72
= log(3 x 3 x 2 x 2 x 2)
= log₃(3) + log₃(3) + log₃(2) + log₃(2) + log₃(2)
= 1 + 1 + 0.6309 + 0.6309 + 0.6309
= 3.8927
log₃(72) = 3.8927