Question
Find Greatest Common Divisor of 774 and 942, using repeated division.
Answer
The GCD of given numbers is 6.
Explanation
Step 1 : Place the numbers inside division bar:.
| 774 | 942 |
Step 2 : Divide numbers by 2.
| 2 | 774 | 942 |
| 387 | 471 |
Step 3 : Divide numbers by 3.
| 2 | 774 | 942 |
| 3 | 387 | 471 |
| 129 | 157 |
Step 4 : Number 129 and 157, cannot be divided any more. The GCD is:
$$ GCD = 2\cdot3 = 6 $$This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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