Factors, Prime and Composite

What are factors?

• The top number in a fraction.
• The numbers multiplied together to make a product.
• The bottom number in a fraction.
• Angles smaller than 90 degrees.

Tags

CCSS.4.OA.B.4

How is a prime number different from a composite number?

• Prime numbers are smaller than composite numbers.
• Composite numbers are larger than prime numbers.
• All odd numbers are prime numbers.
• Prime numbers have only 2 factors, and composite numbers have more than 2 factors.

Tags

CCSS.4.OA.B.4

Which one is a composite number?

• 37
• 41
• 21
• 29

Tags

CCSS.4.OA.B.4

Which number below is NOT prime?

• 2
• 11
• 13
• 18

Tags

CCSS.4.OA.B.4

Which number is a FACTOR of 16

• 7
• 6
• 9
• 4

Tags

CCSS.4.OA.B.4

Is 5 a factor of 80?

• yes
• no

Tags

CCSS.4.OA.B.4

Which one shows ALL of the factors of 6?

• 1, 6, 12
• 1, 2, 3, 6
• 1, 2, 3,
• 1, 6

Tags

CCSS.4.OA.B.4

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Tags

CCSS.4.OA.B.4

Is 6 a factor of 24?

• Yes

• No

Tags

CCSS.4.OA.B.4

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4