how do I change the base of log?

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Guest May 29, 2016

Guest · Answer 1 · 2016-05-29T07:06:37

Example: Find the Log of 125 to base 15=Log(125) / Log(15)=1.782948......, so that: 15^1.782948=~125.

MaxWong · Answer 2 · 2016-05-30T12:53:34

$\frac{log_ab}{log_ac}=log_cb$

That's the formula.