LCM, HCF and Divisibility test

Which number is a factor of 10

• 3

• 4

• 5

• 8

Tags

CCSS.4.OA.B.4

List the first 5 multiples of 3

• 3, 6 10, 15, 20
• 1, 3
• 3, 6, 9, 12, 15
• 6, 9, 12, 15, 18

Tags

CCSS.3.OA.D.9

CCSS.3.OA.C.7

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)

Tags

CCSS.4.OA.B.4

Which one is a multiple of 4?

• 33
• 22
• 18
• 24

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 21 and 28

• 3
• 4
• 7
• 14

Tags

CCSS.6.NS.B.4

What is the LCM of 4 and 12? 

• 4
• 8
• 12
• 16

Tags

CCSS.6.NS.B.4

Find the HCF of 12 and 15 ?

• 2
• 2 x 3
• 3
• 60

Tags

CCSS.6.NS.B.4

Find the HCF of 40 and 60?

• 10
• 20
• 30
• None of the above

Tags

CCSS.6.NS.B.4

What is the LCM of 6 and 8 ?

• 12
• 18
• 24
• 36

Tags

CCSS.6.NS.B.4