GCF and LCM

Find the LCM of 12 and 6. 

• 6
• 12
• 2
• 1

Tags

CCSS.6.NS.B.4

51 is a _____________ of 3

• Factor 
• Multiple

Tags

CCSS.6.NS.B.4

What is the GCF of 18 and 24?

• 3
• 6
• 8
• 9

Tags

CCSS.6.NS.B.4

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

Tags

CCSS.6.NS.B.4

Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again?

• 48 seconds
• 45 seconds
• 16 seconds
• 8 seconds

Tags

CCSS.6.NS.B.4

18 ____________ a factor of 9.

• is

• is not

Tags

CCSS.4.OA.B.4

Which pair of numbers has a GCF of 10 AND a LCM of 60?

• 2 and 5

• 20 and 30

• 5 and 10

• 15 and 20

Tags

CCSS.6.NS.B.4

There are 14 girls and 21 boys in Mrs. Andrew's gym class. To play a certain game, the students must form teams. Each team must have the same number of boys and girls. What is the greatest number of teams Mrs. Andrews can make if every student is on a team?

• 7 teams
• 14 teams
• 21 teams
• 42 teams

Tags

CCSS.6.NS.B.4

CCSS.6.RP.A.3

LCM (9, 12)

• 9
• 36
• 12
• 3

Tags

CCSS.6.NS.B.4

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2

Tags

CCSS.6.NS.B.4