Find Greatest Common Divisor of 50 and 15, using Euclidean algorithm.
Answer
The GCD of given numbers is 5.
Explanation
Step 1 :
Divide $ 50 $ by $ 15 $ and get the remainder
The remainder is positive ($ 5 > 0 $), so we will continue with division.
Step 2 :
Divide $ 15 $ by $ \color{blue}{ 5 } $ and get the remainder
The remainder is zero => GCD is the last divisor $ \color{blue}{ \boxed { 5 }} $.
We can summarize an algorithm into a following table.
| 50 | : | 15 | = | 3 | remainder ( 5 ) | ||
| 15 | : | 5 | = | 3 | remainder ( 0 ) | ||
| GCD = 5 | |||||||
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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