Mastering LCM and HCF with Powers

What is the LCM of 12 and 15?

• 30

• 45

• 75

• 60

Calculate the HCF of 24 and 36.

• 24

• 6

• 12

• 18

Using prime factorization, find the LCM of 18 and 30.

• 72

• 60

• 45

• 90

What is the HCF of 48 and 60?

• 12

• 20

• 10

• 15

Determine the LCM of 8, 12, and 16 using prime factors.

• 36

• 32

• 24

• 48

Find the HCF of 81 and 27.

• 54

• 36

• 9

• 27

If the LCM of two numbers is 60 and their HCF is 12, what are the numbers?

• 15 and 45

• 20 and 40

• 12 and 30

• 12 and 60

Calculate the LCM of 14 and 35 using prime factorization.

• 42

• 70

• 56

• 28

What is the relationship between LCM and HCF of two numbers?

• LCM(a, b) + HCF(a, b) = a + b

• LCM(a, b) - HCF(a, b) = a / b

• LCM(a, b) / HCF(a, b) = a + b

• LCM(a, b) * HCF(a, b) = a * b

Find the HCF of 100 and 250.

• 100

• 25

• 75

• 50