Greatest Common Factor

One is... 

• prime.

• composite.

• neither prime or composite.

• the loneliest number that you'll ever know.

A prime number...

• has one factor.
• has more than 2 factors.
• has 100 factors.
• has exactly 2 factors: 1 and the itself.

A composite number ...

• has more than 2 factors.
• has one factor.
• has at least 10 factors.
• is always a really big number.

Tags

CCSS.4.OA.B.4

49 is...

• Prime.

• Composite.

• Neither Prime Nor Composite.

30 is...

• Prime.

• Composite.

• Neither Prime Nor Composite.

What are all the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

What are all the factors of 24?

• 2, 4, 6, 8, 12

• 1, 2, 3, 4, 6, 8, 10, 12, 24

• 1, 2, 3, 4, 5, 6, 7, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Tags

CCSS.4.OA.B.4

What is the prime factorization of 27?

• 3 * 3 * 3

• 3 * 2 * 3

• 3 * 3 * 4

• 2 * 3 * 5

Tags

CCSS.4.OA.B.4

If the prime factorization of a number is 2 ⋅ 2 ⋅ 2 ⋅ 3 ⋅ 3 ⋅ 5 ⋅ 7, what would the exponential form of the number be?

• 2 ⋅ 3 ⋅ 5 ⋅ 7

• 2³ ⋅ 3² ⋅ 5 ⋅ 7

• 2² ⋅ 3² ⋅ 5 ⋅ 7

• 8 ⋅ 9 ⋅ 35

Tags

CCSS.6.EE.A.1