Factors and Multiples Review

Peter wrote 4 sets of numbers. Which set shows only multiples of 6?

• 6, 12,18,24
• 6, 16, 26, 36
• 1, 2, 3, 6
• 6, 40, 66, 500

Tags

CCSS.4.OA.B.4

Which statement is true?

• The only factors of 4 are 1 and 4.
• The only factors of 6 are 1 and 6.
• The only factors of 3 are 1 and 3.
• The only factors of 8 are 1 and 8.

Tags

CCSS.4.OA.B.4

Is 19 prime or composite?

• prime
• composite

Is 12 prime or composite?

• prime
• composite

Is 33 prime or composite?

• prime
• composite

Is 17 prime or composite?

• prime
• composite

Which statement is NOT true?

• A composite number has at least 3 factors.
• All prime numbers are odd.
• 2 is the smallest prime number.
• All prime numbers have exactly two factors.

Which lists all the factors of 25?

• 1, 25
• 1, 10, 25
• 1, 25, 50
• 1, 5, 25

Tags

CCSS.4.OA.B.4

This kind of number has exactly two factors.

• prime
• composite

This kind of number has more than two factors.

• prime
• composite