you have learned to use divisibility rules for 2 5 and 10 to find the common factor of numbers. Now give the common factors of the following number except 1
1. 16 and 20
2. 20 and 15
3. 12 and 18
4. 30 and 45
5. 25 and 10
6. 15 and 25
7. 40 and 15
8. 55 and 10
9. 20 and 30
10.38 and 20​