Question
Find Greatest Common Divisor of 6 and 9, using prime factorization.
Answer
The GCD of given numbers is 3.
Explanation
Step 1 : Find prime factorization of each number.
(view steps on how to factor 6 and 9. )
Step 2 : Put a box around factors that are common for all numbers:
Step 3 : Multiply the boxed numbers together:
This solution can be visualized using a Venn diagram.
0,0
6
9
3
2
3
The GCD equals the product of the numbers at the intersection.
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