How do you write 390,000 in scientific notation? Algebra Exponents and Exponential Functions Scientific Notation 1 Answer George C. Jun 17, 2015 #390000 = 3.9 xx 10^5# Explanation: For numbers greater than #10# count the number of times you need to shift the number to the right until it's less than #10# to get your exponent. Answer link Related questions How do you convert standard form to scientific notation? What is Scientific Notation? What are examples of scientific notation used in real life? How do you write numerical values of expressions written in scientific notation? When is the exponent in scientific notation negative? How do you write the numerical value of #1.75 \times 10^{-3}#? How do you write #0.000000027# in scientific notation? How do you write 12 in scientific notation? How do you multiply #(5×10^2)(7×10^5)#? How do you write 0.0000000000001 in scientific notation? See all questions in Scientific Notation Impact of this question 4835 views around the world You can reuse this answer Creative Commons License