Log Base 8 of 5

Logarithm Calculator
Log base
x

What is log₈ 5?

Answer

log8 5 ≈
0.7740

log8 is the log base 8.

≈ — the logarithm is irrational; the value is rounded to 4 decimal places.

log8 5 is the power you raise 8 to, to get 5: 8y = 5.

8⁰ = 1 < 5 < 8 = 8¹, so 0 < log8 5 < 1

log8 5 = ln 5 / ln 8 ≈ 1.609438 / 2.079442 ≈ 0.7740

Oxy1

Answer point ≈ (5, 0.7740).

The curve y = log8 x passes through (1, 0) and (8, 1) and rises: for x > 1 the log is positive, for 0 < x < 1 negative.

Log of 5 in different bases
BaseNotationValue
eln 5≈ 1.6094
10log 5≈ 0.6990
2log₂ 5≈ 2.3219
8log₈ 5≈ 0.7740

See Also

Log base 8 of nearby numbers

xlog₈ x
10
21/3
42/3
5≈ 0.7740

FAQ

What is log₈ 5?

log₈ 5 ≈ 0.7740

How to calculate log₈ 5 on a calculator?

Divide the natural logs: log₈ 5 = ln 5 / ln 8 ≈ 1.609438 / 2.079442 ≈ 0.7740.

What does log without a base mean?

At school and on a calculator, log x without a base is the common log, base 10: log 100 = 2. In Python, math.log(x) is the natural log ln x; in Excel, LN is the natural log and LOG is base 10.