Log of 80 (Base 10)
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What is log 80?
Answer
log 80 ≈
1.9031
log here is the common log, base 10.
≈ — the logarithm is irrational; the value is rounded to 4 decimal places.
log 80 is the power you raise 10 to, to get 80: 10y = 80.
10¹ = 10 < 80 < 100 = 10², so 1 < log 80 < 2
log 80 = ln 80 / ln 10 ≈ 4.382027 / 2.302585 ≈ 1.9031
Answer point ≈ (80, 1.9031).
The curve y = log x passes through (1, 0) and (10, 1) and rises: for x > 1 the log is positive, for 0 < x < 1 negative.
| Base | Notation | Value |
|---|---|---|
| e | ln 80 | ≈ 4.3820 |
| 10 | log 80 | ≈ 1.9031 |
| 2 | log₂ 80 | ≈ 6.3219 |
See Also
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- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89
FAQ
What is log 80?
log 80 ≈ 1.9031
What is the difference between log 80 and ln 80?
ln 80 is the logarithm to base e, log 80 is to base 10: ln 80 ≈ 4.3820, log 80 ≈ 1.9031. One is the other divided by ln 10: log 80 = ln 80 / ln 10 ≈ 1.9031.
What is e?
e ≈ 2.71828 is the base of the natural logarithm: ln x is the logarithm of x to base e, so ln e = 1. It is an irrational number, like π.
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