Use the form below to do your conversion.
Solution
Step1
Log72857=Log(2857) ÷ Log(7)
Log(2857)= 3.4559102403827
Log(7)=0.84509804001426
Log72857=3.4559102403827 ÷ 0.84509804001426
Ans=4.0893601413683
Step2
Alternatively, the logarithm can be calculated like this.