Log of 15 (Base 10)

What is log 15?

Answer

log 15 ≈

1.1761

log here is the common log, base 10.

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

log 15 is the power you raise 10 to, to get 15: 10^y = 15.

10¹ = 10 < 15 < 100 = 10², so 1 < log 15 < 2

log 15 = ln 15 / ln 10 ≈ 2.708050 / 2.302585 ≈ 1.1761

Answer point ≈ (15, 1.1761).

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.

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