HCF or GCD

Find the HCF of 12 and 16...

• 2

• 4

• 6

• 8

Tags

CCSS.6.NS.B.4

Find the HCF of 8 and 24 ...

• 2

• 4

• 6

• 8

Tags

CCSS.6.NS.B.4

what are the first 5 prime numbers in ascending order?

• 2,3,4,5,11

• 1,2,3,5,11

• 2,3,5,7,11

• 2,3,11,7,5

Which of the following numbers is not composite?

• 24

• 40

• 66

• 61

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Tags

CCSS.4.OA.B.4

Joe has listed the first 4 multiples of 7 as: 
7   14    22     28
Which one is incorrect?

• 7
• 14
• 22
• 28

Tags

CCSS.4.OA.B.4

Find the HCF of 40 and 60?

• 10
• 20
• 30
• None of the above

Tags

CCSS.6.NS.B.4

What are the factors of 24

• 1,6,8,9,12,18,24

• 2,3,4,6,8,12

• 1,24

• 1,2,3,4,6,8,12,24

Find the HCF of 45 and 60?

• 5

• 15

• 10

• 9

What is the highest common factor (HCF) of 20 and 10?

• 10

• 5

• 3

• 7