What is ln of 0.100#? Precalculus Properties of Logarithmic Functions Natural Logs 1 Answer Shwetank Mauria Mar 22, 2018 #ln0.100=-2.3026# Explanation: #ln# is used for Napier's or natural logarithm i.e. to the base #10#. Now #0.100=10^(-1)# hence #log0.100=-1# As #ln0.100=log0.100/loge# - here #log# is used with base#10# #ln0.100=-1/loge=-1/0.4343=-2.3026# Answer link Related questions What is the natural log of e? What is the natural log of 2? How do I do natural logs on a TI-83? How do I find the natural log of a fraction? What is the natural log of 1? What is the natural log of infinity? Can I find the natural log of a negative number? How do I find a natural log without a calculator? How do I find the natural log of a given number by using a calculator? How do I do natural logs on a TI-84? See all questions in Natural Logs Impact of this question 1967 views around the world You can reuse this answer Creative Commons License