Use the form below to do your conversion.
Solution
Step1
Log21659=Log(659) ÷ Log(21)
Log(659)= 2.818885414594
Log(21)=1.3222192947339
Log21659=2.818885414594 ÷ 1.3222192947339
Ans=2.1319348657374
Step2
Alternatively, the logarithm can be calculated like this.