LCM and GCF Test Practice

What is the greatest common factor of 18, 27, and 45?

• 4

• 8

• 9

• 12

Which of these multiples is the LCM of 12, 16, and 24?

• 24

• 48

• 54

• 60

Alfred Jun visits the library once every 2 days. Jayson visits it once every 3 days while Justine Louie once every 4 days. They all meet one day in the library. After how many days will they meet in the library again?

• 12

• 16

• 20

• 24

What is the GCF of 12, 24, and 36?

• 12

• 18

• 24

• 48

60 notebooks, 48 ball pens, and 36 correction tapes are shared among a number of grade 5 pupils so that each gets an equal number of each kind. How many of each kind can each pupil get?

• 4

• 8

• 12

• 16