1. EASY

What are the factors of 12?

  1. 1, 2, 3, 4, 6, 12
  2. 2, 3, 4, 6
  3. 1, 2, 4, 6, 8, 12
  4. 1, 3, 6, 12
  5. 1, 12
 
2. MEDIUM

A number's factors, excluding the number itself, are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, __ . What is the last factor?

 
3. MEDIUM

What are the factors of 87?

  1. 1, 87
  2. 87, 1
  3. 1, 3, 27, 87
  4. 1, 3, 29, 87
  5. None of the above
 
4. MEDIUM

What is the product of the all factors of 12?

 
5. HARD

If a is a factor of b, then are all the factors of a factors of b?

  1. Yes
  2. No
  3. Only if the factor isn't a prime
  4. Only if the factor is a prime
  5. Cannot determine
 
6. HARD

What is the sum of the factors of 117?