Find Greatest Common Divisor of 504 and 1100, using Euclidean algorithm.
Answer
The GCD of given numbers is 4.
Explanation
Step 1 :
Divide $ 1100 $ by $ 504 $ and get the remainder
The remainder is positive ($ 92 > 0 $), so we will continue with division.
Step 2 :
Divide $ 504 $ by $ \color{blue}{ 92 } $ and get the remainder
The remainder is still positive ($ 44 > 0 $), so we will continue with division.
Step 3 :
Divide $ 92 $ by $ \color{blue}{ 44 } $ and get the remainder
The remainder is still positive ($ 4 > 0 $), so we will continue with division.
Step 4 :
Divide $ 44 $ by $ \color{blue}{ 4 } $ and get the remainder
The remainder is zero => GCD is the last divisor $ \color{blue}{ \boxed { 4 }} $.
We can summarize an algorithm into a following table.
| 1100 | : | 504 | = | 2 | remainder ( 92 ) | ||||||
| 504 | : | 92 | = | 5 | remainder ( 44 ) | ||||||
| 92 | : | 44 | = | 2 | remainder ( 4 ) | ||||||
| 44 | : | 4 | = | 11 | remainder ( 0 ) | ||||||
| GCD = 4 | |||||||||||
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.