What is Log Base 3 of 243?

The below is the work with steps to find what is log base 3 of 243 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 = 243
b = 3

Solution:
y = log₃ 243
= log₃ 3⁵
= 5 log₃ 3 = 5 x 1
log₃ 243 = 5
log₃(243) = 5