🔢 Finding Factors of Whole Numbers Quiz

Master Factor Finding Skills

📋 Instructions: Find all factors of given numbers and identify factor pairs. A factor is a number that divides evenly into another number with no remainder. Select the best answer for each question.

1. What are all the factors of 12?

a) 1, 2, 3, 4, 6, 12 b) 1, 3, 4, 12 c) 2, 4, 6, 12 d) 1, 2, 6, 12

2. Which number is NOT a factor of 24?

a) 8 b) 5 c) 6 d) 4

3. What are the factor pairs of 18?

a) (1,18), (2,9), (3,6) b) (1,18), (3,6) c) (2,9), (3,6) d) (1,18), (2,9), (4,5)

4. How many factors does 16 have?

a) 4 b) 5 c) 6 d) 3

5. What are all the factors of 20?

a) 1, 2, 4, 5, 10, 20 b) 1, 4, 5, 20 c) 2, 4, 10, 20 d) 1, 2, 5, 10, 20

6. Which of these numbers is a prime number (has exactly 2 factors)?

a) 9 b) 15 c) 17 d) 21

7. What is the greatest common factor (GCF) of 12 and 18?

a) 3 b) 6 c) 9 d) 2

8. What are all the factors of 30?

a) 1, 2, 3, 5, 6, 10, 15, 30 b) 1, 3, 5, 10, 15, 30 c) 2, 3, 5, 6, 10, 15, 30 d) 1, 2, 5, 6, 15, 30

9. Which number has exactly 3 factors?

a) 8 b) 9 c) 10 d) 12

10. What are the common factors of 24 and 36?

a) 1, 2, 3, 4, 6, 12 b) 1, 3, 6, 12 c) 2, 4, 6, 12 d) 1, 2, 6, 12

This HTML quiz focuses on finding factors of whole numbers, including factor pairs, prime numbers, and greatest common factors, with automatic scoring and detailed explanations for each question.