Find Greatest Common Divisor of 18, 19 and 22, by listing out the factors.
Answer
The GCD of given numbers is 1.
Explanation
| factors of 18 are : | 1 , 2 , 3 , 6 , 9 , 18 |
| factors of 19 are : | 1 , 19 |
| factors of 22 are : | 1 , 2 , 11 , 22 |
We see that the Greatest Common Factor = 1.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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