Use the form below to do your conversion.
Solution
Step1
Log2117987=Log(17987) ÷ Log(21)
Log(17987)= 4.2549587346578
Log(21)=1.3222192947339
Log2117987=4.2549587346578 ÷ 1.3222192947339
Ans=3.2180431427709
Step2
Alternatively, the logarithm can be calculated like this.