Part 1: Finding the GCF Directions: Find the greatest common factor (GCF) of each pair of numbers....

Part 1: Finding the GCF
Directions: Find the greatest common factor (GCF) of each pair of numbers. Remember: the GCF is the largest factor that two or more numbers share.
1. 12 and 18
2. 20 and 50
3. 24 and 36
4. 16 and 40
5. 30 and 45
6. 27 and 42
7. 32 and 48
8. 25 and 50
9. 18 and 27
Part 2: Finding the LCM
Directions: Find the least common multiple (LCM) of each pair of numbers. Remember: the LCM is the smallest multiple that two or more numbers share.
1. 2 and 3
2. 4 and 6
3. 5 and 10
4. 3 and 12
5. 8 and 10
6. 6 and 20
7. 4 and 25
8. 5 and 50
9. 10 and 12
10. 2 and 100