Prime, HCF and LCM

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

Find the LCM of 12 and 16...

• 48

• 36

• 64

• 96

Tags

CCSS.6.NS.B.4

Find the HCF of 12 and 16...

• 2

• 4

• 6

• 8

Tags

CCSS.6.NS.B.4

Which of these numbers is not prime?

• 17

• 25

• 23

• 37

Tags

CCSS.4.OA.B.4

Number 27 is both ...

• even and composite

• odd and composite and a cube number

• even and prime

• odd and prime

Find the HCF of 30 and 36

• 2
• 3
• 4
• 6

Tags

CCSS.6.NS.B.4

Derek advises a patient to have a scale every 4 months and a polish every 6 months. If they have a scale and polish today, how long will they wait before they can have both during the same appointment?

• HCF

• LCM

Tags

CCSS.6.NS.B.4

51 is a _____________ of 3

• Factor 
• Multiple

Tags

CCSS.6.NS.B.4

What is the least common multiple (LCM) of 15 and 2?

• 30
• 2
• 45
• 152

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