Prime vs Composite

What is the definition of a Prime number?

• A number with only one factor.

• A number that only has one factor pair, 1 and itself.

• A number that is bigger than 1.

• A number that has more than two factors.

which list below only has prime numbers?

• 3, 5, 10

• 5, 7, 9

• 3, 5, 7

• 3, 7, 12

Tags

CCSS.4.OA.B.4

What is the definition of a composite number?

• a number that has more than one factor pair.

• A number that can only be made by multiplying itself by 1.

• a number that has only one factor pair.

• any number bigger than 1.

which list below has only composite numbers?

• 2, 4, 6

• 3, 5, 7

• 4, 6, 8

• 10, 5, 3

Which number is neither prime nor composite?

• 1
• 2
• 3
• 4

Tags

CCSS.4.OA.B.4

Randy's house number is a composite number. Which of the following could be Randy's house number?

• 11

• 15

• 7

• 13

Four students each made a list of prime numbers.

Eric: 5, 7 17, 23

Maya: 3, 5, 13, 17

Bella: 2, 3, 17, 19

Joan: 7, 11, 13, 21

Who made an error and included a composite number?

• Eric

• Maya

• Bella

• Joan

Tags

CCSS.4.OA.B.4

Is 3 a Prime or Composite number?

• Prime
• Composite

What are all prime numbers divisible by?

• 1, 2, and itself
• 1 and itself
• Every number from 1-10
• They aren't divisable at all

Tags

CCSS.4.OA.B.4

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Tags

CCSS.4.OA.B.4