How do you calculate # log_3(54)#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer A. S. Adikesavan May 14, 2016 #log 2/log 3 + 3=3.631#, nearly. Explanation: For long-term-memory: #log_b a=log_c a/log_c b=log a/log b=ln a/ln b# Here, #log_3 54= log 54/log 3# #=log(2 (3^3))/log 3=(log 2 + 3 log 3)/log 3=log 2/log 3 + 3# 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 2488 views around the world You can reuse this answer Creative Commons License