Multiples/Factors/Prime /Composite Quiz

Choose the factors of 21.

• 1,21

• 1,2,11,21

• 1,3,7,21

Is 67 a Prime or Composite number?

• Prime

• Composite

Choose the factors of 26.

• 1,2,13,26

• 1,26

• 1,2,11,15,26

Is 91 a Prime or Composite number?

• Prime

• Composite

Is 37 a Prime or Composite number?

• Prime

• Composite

Is 16 a Prime or Composite number?

• Prime

• Composite

List five multiples of the number 6. Use commas!

List five multiples of the number 8. Use commas!

List five multiples of the number 5. Use commas!

Is 0 a Prime or Composite number?

Hint: All even numbers (except the number two) are composite

• Prime

• Composite

• Neither

• I don't know.

Answer explanation

Zero is neither prime nor composite. Since any number times zero equals zero, there are an infinite number of factors for a product of zero. A composite number must have a finite number of factors.