Use the form below to do your conversion.
Solution
Step1
Log15641=Log(641) ÷ Log(15)
Log(641)= 2.8068580295188
Log(15)=1.1760912590557
Log15641=2.8068580295188 ÷ 1.1760912590557
Ans=2.3865988356826
Step2
Alternatively, the logarithm can be calculated like this.