Find Greatest Common Divisor of 126 and 147, by listing out the factors.
Answer
The GCD of given numbers is 21.
Explanation
| factors of 126 are : | 1 , 2 , 3 , 6 , 7 , 9 , 14 , 18 , 21 , 42 , 63 , 126 |
| factors of 147 are : | 1 , 3 , 7 , 21 , 49 , 147 |
We see that the Greatest Common Factor = 21.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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