LCM and HCF

Write 36 as the product of it's prime factors...

• 2 x 2 x 3 x 3

• 2 x 2 x 2 x 3

• 2² x 3²

• 2² x 3

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Write 135 as the product of it's prime factors...

Write your answer in index form...

• 3² x 5²

• 3³ x 5

• 3 x 3 x 3 x 5

• 3 x 3 x 5 x 5

Write 80 as the product of it's prime factors...

Write your answer in index form...

• 2⁴ x 5

• 2 x 2 x 2 x 5 x 5

• 2 x 2 x 2 x 2 x 5

• 2³ x 5²

Tags

CCSS.6.EE.A.1

A common factor of two integers is always a ____________ of their HCF.

• multiple

• factor

• (no answer)

A common multiple of two integers is always a ____________ of their LCM.

• multiple

• factor

• (no answer)

What is the LCM of 2, 4, 6?

• 6

• 12

• 4

• 2

What is the greatest common factor of 24 and 36?

• 2

• 3

• 12

• 24

Tags

CCSS.6.NS.B.4

What is the GCF of 4 and 12?

• 3
• 1
• 6
• 4

Tags

CCSS.6.NS.B.4

Given two different prime numbers, their HCF is:

• The smaller prime

• The larger prime

• 1

• Unknown, as we don't know what they are

Given two different prime numbers, their LCM is:

• The smaller prime

• The larger prime

• Unknown, as we don't know what they are

• Their product

• Their sum