Use the form below to do your conversion.
Solution
Step1
Log79989=Log(9989) ÷ Log(7)
Log(9989)= 3.9995220131289
Log(7)=0.84509804001426
Log79989=3.9995220131289 ÷ 0.84509804001426
Ans=4.7326130505065
Step2
Alternatively, the logarithm can be calculated like this.