Use the form below to do your conversion.
Solution
Step1
Log81561=Log(1561) ÷ Log(8)
Log(1561)= 3.1934029030624
Log(8)=0.90308998699194
Log81561=3.1934029030624 ÷ 0.90308998699194
Ans=3.5360849406593
Step2
Alternatively, the logarithm can be calculated like this.