Sig figs for ln

[Ariana de Souza 4C]

Hey everyone
Not sure if this has been asked before (it probably has) but does the mantissa rule still apply for natural logs?
And do we use that rule whenever we need to use an equation that uses a natural log? Does the rule change when we have to do e^x to get rid of the natural log?
Thanks

[Elan Karlin Dis3H]

When you take log or ln for a number, the number of significant figures you are taking the log or ln of will be the number of decimal places you use. When you raise a number to an exponent, the number of decimal places of the exponent is the number of significant figures your answer has. This applies to e^x also.