Use the form below to do your conversion.
Solution
Step1
Log2012109=Log(12109) ÷ Log(20)
Log(12109)= 4.0831082791947
Log(20)=1.301029995664
Log2012109=4.0831082791947 ÷ 1.301029995664
Ans=3.1383659814168
Step2
Alternatively, the logarithm can be calculated like this.