GCF and LCM

LCM of:
15 and 20

• 5
• 45
• 60
• 300

LCM of: 
6 and 9

• 3
• 12
• 18

• 36

GCF of: 
5 and 7

• 1
• 3
• 5
• 7

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

• 4
• 40
• 15
• 20

Is 35 prime or composite?

• prime
• composite

Tags

CCSS.4.OA.B.4

LCM of: 
6 and 9

• 3
• 12
• 24
• 36

GCF of: 
5 and 7

• 1
• 3
• 5
• 7

GCF of: 
14 and 20

• 7
• 28
• 2
• 6

GCF of 24 and 56

• 2
• 4
• 6
• 8

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2