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Question
Find Greatest Common Divisor of 498304 and 162000, using prime factorization.
Answer
The GCD of given numbers is 16.
Explanation
Step 1 : Find prime factorization of each number.
498304=162000=2⋅2⋅2⋅2⋅2⋅2⋅2⋅17⋅2292⋅2⋅2⋅2⋅3⋅3⋅3⋅3⋅5⋅5⋅5(view steps on how to factor 498304 and 162000. )
Step 2 : Put a box around factors that are common for all numbers:
498304=162000=2⋅2⋅2⋅2⋅2⋅2⋅2⋅17⋅2292⋅2⋅2⋅2⋅3⋅3⋅3⋅3⋅5⋅5⋅5Step 3 : Multiply the boxed numbers together:
GCD=2⋅2⋅2⋅2=16
This solution can be visualized using a Venn diagram.
0,0
498304
162000
2
2
2
2
2
2
2
17
229
3
3
3
3
5
5
5
The GCD equals the product of the numbers at the intersection.
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