Question
Find Greatest Common Divisor of 33 and 72, by listing out the factors.
Answer
The GCD of given numbers is 3.
Explanation
| factors of 33 are : | 1 , 3 , 11 , 33 |
| factors of 72 are : | 1 , 2 , 3 , 4 , 6 , 8 , 9 , 12 , 18 , 24 , 36 , 72 |
We see that the Greatest Common Factor = 3.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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