Prime Factorization

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

A prime number

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

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 60

• 5x3x2x2

• 7x6x5

• 5x3x3x2

• 7x5x4

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 42

• 4x4x3

• 6x7

• 7x3x2

• 5x4x2

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 72

• 2x2x2x3x3

• 4x3x3x2

• 4x2x2x2x2

Using a Factor Tree, find the prime factorization of 75.  

• 5² x 3
• 5 x 5 x 3
• 3² x 5
• 15 x 5

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Which of the following are all prime numbers

• 2, 3, 6, 7, 9
• 2, 4, 8, 16
• 2, 3, 5, 7, 9
• 2, 3, 5, 7, 11

Tags

CCSS.4.OA.B.4

Which of these is NOT a factor of 36?

• 2
• 8
• 12
• 6

Tags

CCSS.4.OA.B.4

One is 

• prime
• composite
• not prime or composite
• the loneliest number that you'll ever do

Tags

CCSS.4.OA.B.4

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