GCD Practice Exercises with Solutions on Youtube

Find the GCD/GCF of the following numbers.

1. 12, 18
2. 14, 35
3. 20,28
4. 25, 30, 40
5. 7, 12
6. 48, 72
7. 42, 60, 72
8. 24, 36
9. 12, 16
10. 18, 30, 54

Answers

1. 6
2. 7
3. 4
4. 5
5. 1
6. 12
7. 6
8. 12
9. 4
10. 6

Solutions to numbers 1-2
Solutions to numbers 3-5
Solutions to numbers 6-7
Solutions to numbers 8-10
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