Using the Excel LOG10 Function

Summary
The LOG10 function returns the base-10 logarithm of a user provided number. Use the LOG function if you would like to specify the base.Syntax
=LOG10 (number)Syntax Breakdown
numberRequired. The number for which you want to find the base-10 logarithm. Number must be a positive real number.
Usage Notes
The LOG10 function is used to find the base-10 logarithm of a positive real number.LOG10 Errors
The number argument in the LOG10 function must be a positive, non-zero number. If the number argument is either zero (0) or negative, the function will return the #NUM! error.
