Question
Find Greatest Common Divisor of 90 and 252, by listing out the factors.
Answer
The GCD of given numbers is 18.
Explanation
| factors of 90 are : | 1 , 2 , 3 , 5 , 6 , 9 , 10 , 15 , 18 , 30 , 45 , 90 |
| factors of 252 are : | 1 , 2 , 3 , 4 , 6 , 7 , 9 , 12 , 14 , 18 , 21 , 28 , 36 , 42 , 63 , 84 , 126 , 252 |
We see that the Greatest Common Factor = 18.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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