Y4 summer

Factor Pairs of 18

• 1,2,3,4,5,6
• 1,2,3,6,9,18
• 1,2,3,6,9,17
• 1,2,3,6,9

Factor Pairs of 25

• 1,25
• 5
• 1,5,26
• 1,5,25

Factor Pairs of 40

• 1,2,4,5,8,12,14,40
• 1,2,3,4,5,8,10
• 1,2,4,5,8,10,20,40
• 1,2,4,5,6,7,8,9,10

Factor Pairs of 28

• 1,2,4,7,14,27
• 1,2,4,7,14,28
• 1,2,4,7,14,29
• 1,2,4,7,14,26

Factor Pairs of 12

• 1,2,3,4,6,12
• 1,12
• 2,3,4,6
• 1,2,4,6

What is the GCF (greatest common factor) of 18 and 24?

• 3
• 6
• 8
• 9

Find the Least Common Multiple of 9 and 6

• 18
• 36
• 38
• 72

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

• 4
• 40
• 15
• 20

What is the GCF (greatest common factor) of 20 and 35?

• 4
• 5
• 7
• 20

Find the Least Common Multiple (LCM) of 4 & 14.

• 14
• 20
• 28
• 42