Factors and Prime/Composite

is 5 prime or composite?

• prime

• composite

Is 33 a prime or composite number?

• Prime

• Composite

Which of these numbers is a composite number?

• 37

• 41

• 21

• 29

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

Which one lists ALL of the factors of 18?

• 1, 2, 9, 18

• 1, 18

• 1, 2, 3, 6, 9, 18

• 2, 3, 6, 9

Which number is a factor of 36?

• 7

• 9

• 10

• 5

Which is a FACTOR of 15?

• 2

• 3

• 4

• 6

Which is a NOT a FACTOR of 12?

• 1

• 3

• 5

• 12

Which is a PRIME number?

• 15

• 17

• 21

• 39

Is 100 a prime or composite number?

• Prime

• Composite