Use the form below to do your conversion.
Solution
Step1
Log86421=Log(6421) ÷ Log(8)
Log(6421)= 3.8076026699165
Log(8)=0.90308998699194
Log86421=3.8076026699165 ÷ 0.90308998699194
Ans=4.2161940944546
Step2
Alternatively, the logarithm can be calculated like this.