Use the form below to do your conversion.
Solution
Step1
Log21157=Log(157) ÷ Log(21)
Log(157)= 2.1958996524092
Log(21)=1.3222192947339
Log21157=2.1958996524092 ÷ 1.3222192947339
Ans=1.6607681200501
Step2
Alternatively, the logarithm can be calculated like this.