Use the form below to do your conversion.
Solution
Step1
Log20257=Log(257) ÷ Log(20)
Log(257)= 2.4099331233313
Log(20)=1.301029995664
Log20257=2.4099331233313 ÷ 1.301029995664
Ans=1.8523271034204
Step2
Alternatively, the logarithm can be calculated like this.