Prime Factorization

Is 5 prime or composite? 

• Prime
• Composite

A prime number

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

All of these are prime except

• 3
• 9
• 2
• 13

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

2 x 2 x 2 is the prime factorization of

• 6
• 12
• 22
• 8

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

What are the prime factors of 30? 

• 3, 2, 5 
• 1, 2, 3, 5, 6, 15, 30
• 3, 30
• 10, 3

What is the prime factorization of 32?

• 2 x 3²

• 2 x 2 x 2 x 2

• 2⁵

• 2 x 2 x 3

How is finding the factors of a number different from finding the prime factorization of a number?

• When finding the factors you may have prime and composite numbers

• When finding the prime factorization you will end up with only prime numbers

• all of the above

Karl needs to build a stage that has an area of 21 square feet. The length of the stage. What is one possible whole number measurement for length and width of the stage besides 1 and 21?

• 2 and 12

• 3 and 7

• 1 and 7

• 4 and 8