Use the properties of logarithms to evaluate the expression.

log 10^{15}

**Solution:-**

To simplify this expression, use the logarithmic property log _{b}b^{x}=x. Check to see if the given expression matches the form log _{b} b^{x}.

The base of the given logarithmic expression is 10.

To simplify the logarithm, base 10, of 10 to a power, use the above logarithmic property. In the expression log 10^{15}, b = 10 and x = 15.

Log 10^{15 } = 15