Use the form below to do your conversion.
Solution
Step1
Log713891=Log(13891) ÷ Log(7)
Log(13891)= 4.1427335113135
Log(7)=0.84509804001426
Log713891=4.1427335113135 ÷ 0.84509804001426
Ans=4.9020744519105
Step2
Alternatively, the logarithm can be calculated like this.