Find Greatest Common Divisor of 17 and 6, using Euclidean algorithm.
Answer
The GCD of given numbers is 1.
Explanation
Step 1 :
Divide $ 17 $ by $ 6 $ and get the remainder
The remainder is positive ($ 5 > 0 $), so we will continue with division.
Step 2 :
Divide $ 6 $ by $ \color{blue}{ 5 } $ and get the remainder
The remainder is still positive ($ 1 > 0 $), so we will continue with division.
Step 3 :
Divide $ 5 $ by $ \color{blue}{ 1 } $ and get the remainder
The remainder is zero => GCD is the last divisor $ \color{blue}{ \boxed { 1 }} $.
We can summarize an algorithm into a following table.
| 17 | : | 6 | = | 2 | remainder ( 5 ) | ||||
| 6 | : | 5 | = | 1 | remainder ( 1 ) | ||||
| 5 | : | 1 | = | 5 | remainder ( 0 ) | ||||
| 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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