Use the form below to do your conversion.
Solution
Step1
Log216421=Log(6421) ÷ Log(21)
Log(6421)= 3.8076026699165
Log(21)=1.3222192947339
Log216421=3.8076026699165 ÷ 1.3222192947339
Ans=2.8797058741173
Step2
Alternatively, the logarithm can be calculated like this.