What is Log Base 7 of 2401?

The below is the work with steps to find what is log base 7 of 2401 shows how the input values are being used in the log base 7 functions. Formula:
log_b(x) = y, if b^y = x

Input:
x = 2401
b = 7

Solution:
y = log₇ 2401
= log₇ 7⁴
= 4 log₇ 7 = 4 x 1
log₇ 2401 = 4
log₇(2401) = 4