The Least Common Multiple

Read this text for a description of multiples and the method to determine the least common multiple of a given set of numbers. Complete the practice questions and check your answers.

Practice

Practice Set A

Find the first five multiples of the following numbers.

  1. 4
  2. 5
  3. 6
  4. 7
  5. 9


Practice Set B

Find the first five common multiples of the following numbers.

  1. 2 and 4
  2. 3 and 4
  3. 2 and 5
  4. 3 and 6
  5. 4 and 5


Practice Set C

Find the LCM of the following numbers.

  1. 20 and 54
  2. 14 and 28
  3. 6 and 63
  4. 28, 40, and 98
  5. 16, 27, 125, and 363