Use the form below to do your conversion.
Solution
Step1
Log157121=Log(7121) ÷ Log(15)
Log(7121)= 3.8525409857698
Log(15)=1.1760912590557
Log157121=3.8525409857698 ÷ 1.1760912590557
Ans=3.2757160263763
Step2
Alternatively, the logarithm can be calculated like this.