Use the form below to do your conversion.
Solution
Step1
Log128987=Log(8987) ÷ Log(12)
Log(8987)= 3.9536147416906
Log(12)=1.0791812460476
Log128987=3.9536147416906 ÷ 1.0791812460476
Ans=3.6635317340533
Step2
Alternatively, the logarithm can be calculated like this.