Prime, Composite, Factors and Multiples

Which statement below correctly defines a prime number?

• A prime number is always odd

• A prime number is a number that has more than two factors

• A prime number has exactly two factors- one and itself

• A prime number has at least three factors- one, itself, and another factor

Tags

CCSS.4.OA.B.4

Which number is a multiple of 3?

• 27

• 28

• 29

Tags

CCSS.4.OA.B.4

Find the missing multiple.

10: 10, 20, 30, 40, ___, 60, 70, 80

• 100

• 45

• 50

Tags

CCSS.4.OA.B.4

CCSS.4.OA.C.5

Which of the following shows the multiples of 12?

• 12, 22, 53, 60

• 4, 8, 12, 16, 24

• 12, 24, 36, 48, 60

Tags

CCSS.6.NS.B.4

Is 12 prime or composite?

• prime
• composite

is 5 prime or composite?

• prime
• composite

Composite numbers:

• Are always bigger than prime numbers

• Have 3 or more factors

• Have 2 pairs of factors

• Don't have factors

Tags

CCSS.4.OA.B.4

Which lists all the factors of 15?

• 1, 7, 8, 15
• 1, 15
• 1, 3, 5, 15
• 3, 5, 15

Which are the factors of 14?

• 1,14
• 1, 2, 7, 14
• 2, 7

Tags

CCSS.4.OA.B.4

When we skip count, we are listing .....

• factors
• divisors 
• addition 
• multiples

Tags

CCSS.4.OA.B.4

CCSS.4.OA.C.5