Find Greatest Common Divisor of 28, 42 and 49, using repeated division.
Answer
The GCD of given numbers is 1.
Explanation
Step 1 : Place the numbers inside division bar:.
| 28 | 42 | 49 |
Step 2 : Number 28, 42 and 49, cannot be both divided by any integer number, so the GCD is:
$$ GCD = 1 $$This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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