Tamara Dominas
- Question of
Let’s start! Find the gcd of 20 and 80:
- 20
- 80
- 10
- Question of
All right! and the gcd of 33, 77 and 121?
- 11
- 12
- 20
- Question of
No need to make many counts, what is the gcd of 21 and 28?
- 7
- 6
- 5
- Question of
How you doing? Now the gcd of 15 and 30
- 30
- 15
- 5
- Question of
Now! gcd of 30, 42 and 54
- 6
- 30
- 8
- Question of
What is the gcd of 20 and 16?
- 2
- 4
- 8
- Question of
18 and 24?
- 6
- 18
- 24
- Question of
This one surely will be too easy for you: gcd of 3, 6, 9
- 9
- 6
- 3
- Question of
What if we make it a little harder? 32, 48, 64 and 80
- 20
- 16
- 14
- Question of
What is the gcd of 15, 20, 30 and 60?
- 5
- 10
- 15
- Question of
16, 24 and 40 have as gcd:
- 8
- 2
- 4
- Question of
gcd of 7, 14 and 21
- 21
- 14
- 7
- Question of
gcd of 20, 28, 36 and 40
- 2
- 4
- 8
- Question of
gcd of 144 and 520.
- 2
- 4
- 8
- Question of
Last! What is the gcd of 28, 42, 56 and 70?
- 14
- 16
- 12
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