SOLUTION
The natural logarithm of a number is its logarithm to the base of the mathematical constant e, while a common logarithm is any logarithm with base 10.
For example:
The natural logarithm of X is written mathematically as
[tex]\log _eX[/tex]The above expression for the natural logarithm of X can also be written as:
[tex]\ln X[/tex]The common logarithm of X is written mathematically as
[tex]\log _{10}X[/tex]