Use the form below to do your conversion.
Solution
Step1
Log78515=Log(8515) ÷ Log(7)
Log(8515)= 3.9301846522986
Log(7)=0.84509804001426
Log78515=3.9301846522986 ÷ 0.84509804001426
Ans=4.6505665215273
Step2
Alternatively, the logarithm can be calculated like this.