Fist the. common factors of each pair of numbers.

1. 8, 12
2. 6, 15
3. 8,10
4. 6, 24
5,14,28
6. 18. 24
7. 4, 12
8. 12, 42
9. 24. 20

1. The common factors of 8 and 12 are 1, 2, and 4.

2. The common factor of 6 and 15 is 3.
3. The common factor of 8 and 10 is 2.
4. The common factors of 6 and 24 are 1, 2, 3, 6.
5. The common factors of 14 and 28 are 1, 2, 7, 14.
6. The common factors of 18 and 24 are 1, 2, 3, 6.
7. The common factors of 4 and 12 are 1, 2, 4.
8. The common factors of 12 and 42 are 1, 2, 3, 6.
9. The common factors of 24 and 20 are 1, 2, 4.

Sure! I can help you find the common factors for each pair of numbers. Here are the results:

1. 8, 12:
- Factors of 8: 1, 2, 4, 8
- Factors of 12: 1, 2, 3, 4, 6, 12
- Common factors: 1, 2, 4

2. 6, 15:
- Factors of 6: 1, 2, 3, 6
- Factors of 15: 1, 3, 5, 15
- Common factors: 1, 3

3. 8, 10:
- Factors of 8: 1, 2, 4, 8
- Factors of 10: 1, 2, 5, 10
- Common factors: 1, 2

4. 6, 24:
- Factors of 6: 1, 2, 3, 6
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Common factors: 1, 2, 3, 6

5, 14, 28:
- Factors of 5: 1, 5
- Factors of 14: 1, 2, 7, 14
- Factors of 28: 1, 2, 4, 7, 14, 28
- Common factors: 1, 2, 7, 14

6. 18, 24:
- Factors of 18: 1, 2, 3, 6, 9, 18
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Common factors: 1, 2, 3, 6

7. 4, 12:
- Factors of 4: 1, 2, 4
- Factors of 12: 1, 2, 3, 4, 6, 12
- Common factors: 1, 2, 4

8. 12, 42:
- Factors of 12: 1, 2, 3, 4, 6, 12
- Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42
- Common factors: 1, 2, 3, 6

9. 24, 20:
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 20: 1, 2, 4, 5, 10, 20
- Common factors: 1, 2, 4