Factors and Prime Factorizations

What is a factor?

• a number when multiplied by another produces a product

• a number added together

• answer to a division problem

• a wild animal

Tags

CCSS.4.OA.B.4

Which is a NOT a factor of 12?

• 1
• 3
• 5
• 12

Tags

CCSS.4.OA.B.4

A PRIME NUMBER is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)

Tags

CCSS.4.OA.B.4

Prime numbers have _____ factors.

• no
• 3
• 1
• 2

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

One is 

• prime
• composite
• neither prime nor composite
• the loneliest number that you'll ever do

Tags

CCSS.4.OA.B.4

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

Is 15 a prime or composite number?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

Is 33 prime or composite?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

What is the prime factorization of 15?

• 3x3x3
• 2x2x5
• 15
• 3x5

Tags

CCSS.4.OA.B.4