Question
Find Greatest Common Divisor of 12 and 18, using repeated division.
Answer
The GCD of given numbers is 6.
Explanation
Step 1 : Place the numbers inside division bar:.
| 12 | 18 |
Step 2 : Divide numbers by 2.
| 2 | 12 | 18 |
| 6 | 9 |
Step 3 : Divide numbers by 3.
| 2 | 12 | 18 |
| 3 | 6 | 9 |
| 2 | 3 |
Step 4 : Number 2 and 3, cannot be divided any more. The GCD is:
This solution can be visualized using a Venn diagram.
0,0
12
18
2
3
2
3
The GCD equals the product of the numbers at the intersection.
This page was created using
GCD Calculator