Question
Find Greatest Common Divisor of 91, 64 and 87, using repeated division.
Answer
The GCD of given numbers is 1.
Explanation
Step 1 : Place the numbers inside division bar:.
| 91 | 64 | 87 |
Step 2 : Number 91, 64 and 87, cannot be both divided by any integer number, so the GCD is:
This solution can be visualized using a Venn diagram.
0,0
91
64
87
1
7
13
2
2
2
2
2
2
3
29
The GCD equals the product of the numbers at the intersection.
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