hcf and lcm grade 6

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

• 30
• 2
• 45
• 152

Find the HCF of 25 and 35

• 10
• 5
• 7
• 1

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

• 30
• 2
• 45
• 152

Find the LCM of 8 and 24 ...

• 24

• 48

• 32

• 64

Find the HCF of 8 and 24 ...

• 2

• 4

• 6

• 8

What number is a factor for EVERY number?

• 0
• 1
• 2
• 100

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

51 is a _____________ of 3

• Factor 
• Multiple

Tom and Claire both like do short exercise that involve small breaks. Tom does a short burst of exercise every 2 minutes, and Claire does hers every 3 minutes. If they start doing their exercise at 9:00am, when do they both do their exercises again?

• HCF

• LCM

A carpenter got given some free wooden planks. Some are 12m long and some are 18m long. She wants to cut them up so that she has equal size planks to make using them easier. What size planks should she cut them into to avoid wasting any wood?

• HCF

• LCM