How do you express #log_2 13# in terms of common logarithms? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Douglas K. Nov 15, 2016 #log_2(13) = log_10(13)/log_10(2) = ln(13)/ln(2)# Explanation: Use the property of all logarithms: #log_c(a) = log_b(a)/log_b(c)# Answer link Related questions What is the common logarithm of 10? How do I find the common logarithm of a number? What is a common logarithm or common log? What are common mistakes students make with common log? How do I find the common logarithm of 589,000? How do I find the number whose common logarithm is 2.6025? What is the common logarithm of 54.29? What is the value of the common logarithm log 10,000? What is #log_10 10#? How do I work in #log_10# in Excel? See all questions in Common Logs Impact of this question 3609 views around the world You can reuse this answer Creative Commons License