Factors
List all of the factors of 32.
1, 2, 4, 8, 16, and 32
List 3 multiples of 8 that are less than 50.
8, 16, 24, 32, 40, 48
What is the greatest common factor of 12 and 15
3
What is the least common multiple of 3 and 7?
21
Timer 1 is set to beep every 8 minutes. Timer 2 is set to beep every 6 minutes. At what minute will they both beep together for the first time?
*LCM
24 minutes
List all of the common factors of 12 and 20.
1, 2, and 4
List 3 common multiples of 2 and 6.
6, 12, 18, 24, 30, 36, 42, 48, etc.
What is the greatest common factor of 24 and 20?
4
What is the least common multiple of 4 and 9?
36
You bring snacks for your basketball team every fifth game. Every third game is a home game. When will be the first time that you bring snacks to a home game?
*LCM
15th
List all of the factors of 42.
1, 2, 3, 6, 7, 14, 21, 42
List all the common multiples of 6 and 8 that are less than 50.
24 and 48
What is the greatest factor of 16 and 36?
4
What is the least common multiple of 2, 3, and 5?
30
300
Sarah is making bead necklaces. She has 60 blue beads and 72 green beads. What is the greatest number of identical necklaces she can make if she wants to use all the beads?
*GCF
6
List all of the factors of 52.
1, 2, 4, 13, 26, and 52
List 4 multiples of 7 greater than 10 but less than 50.
14, 21, 28, 35, 42, 49
What is the great common factor of 50, 35, and 15?
5
What is the least common multiple of 20 and 12?
60
Three pigs entered a race around a track. Piggly takes 12 minutes to run one lap. Piglet takes 6 minutes to run one lap and it takes Wiggly 16 minutes to run one lap. If all three pigs begin the race at the same time, how many minutes will it take for all three pigs to be at the starting point again?
*LCM
48 Minutes
List all of the common factors of 24 and 36.
1, 2, 3, 4, 6, 12
List all the common multiples of 12 and 18 that are less than 75.
36 and 72
What is the greatest common factor of 16, 24, and 40.
8
What is the least common multiple of 20 and 25?
100
Johnny baked 36 oatmeal cookies and 48 chocolate chip cookies to package in plastic containers for his teacher friends at school. He wants to divide the cookies into identical containers so that each container has the same number of each kind of cookie. If he wants each container to have the greatest number of cookies possible, how many plastic containers does he need?
*GCF
12 plastic containers