Find a decimal approximation for the logarith. You may use the logb ( ) key if you have one on your calculator, otherwise use the log key and the change of base property. Round to four decimal places.
log3 17 =
log4 0.0386=
Use change of base rule
Or if you are doing it on the web2 calc you don't even have to. It will work it out in any base:))
+152 
