Find the lowest common multiple quiz. Multiples of a number are a series of numbers that are products of the number. Usually two numbers are highlighted and you are required to list out the multiples of both numbers and find out values that are the same. Look at the list of common multiples and find out which one is the lowest. In this quiz students are required to type in this value in the space provided and submit to get feedback based on the answer key. For more practice online, print out the worksheet on finding the L.C.M and solve. At the end of this exercise, students will learn how to find the L.C.M. of different pairs of numbers. 4th, 5th, 6th and 7th grades math quiz.