What is the least common multiple of 3 and 4? Prealgebra Factors and Multiples Least Common Multiple 1 Answer Alan P. Dec 14, 2016 #LCM(3,4)=color(green)(12)# Explanation: Since #3# and #4# have no common factors the Least Common Multiple of #3# and #4# is #3xx4=12# Answer link Related questions What is the least common multiple of 2, 3, and 7? What is the least common multiple of 9, 36 and 45? What is the least common multiple of 5 and 60? What is the least common multiple of 9, 18 , and 21? What is the least common multiple of 8, 10, 12? What is the least common multiple of 15 and 50? What is the least common multiple of 6 and 9? How do you find the least common multiple of a set of numbers? How do you use least common multiple? How can you find the least common multiple using prime factorization? See all questions in Least Common Multiple Impact of this question 19225 views around the world You can reuse this answer Creative Commons License