Use the form below to do your conversion.
Solution
Step1
Log71987=Log(1987) ÷ Log(7)
Log(1987)= 3.2981978671098
Log(7)=0.84509804001426
Log71987=3.2981978671098 ÷ 0.84509804001426
Ans=3.9027399318713
Step2
Alternatively, the logarithm can be calculated like this.