Use the form below to do your conversion.
Solution
Step1
Log72147=Log(2147) ÷ Log(7)
Log(2147)= 3.3318320444362
Log(7)=0.84509804001426
Log72147=3.3318320444362 ÷ 0.84509804001426
Ans=3.9425390743777
Step2
Alternatively, the logarithm can be calculated like this.