Use the form below to do your conversion.
Solution
Step1
Log72155=Log(2155) ÷ Log(7)
Log(2155)= 3.3334472744968
Log(7)=0.84509804001426
Log72155=3.3334472744968 ÷ 0.84509804001426
Ans=3.944450367487
Step2
Alternatively, the logarithm can be calculated like this.