◀ back to index
Question
Find Greatest Common Divisor of 432, 576 and 1008, using prime factorization.
Answer
The GCD of given numbers is 144.
Explanation
Step 1 : Find prime factorization of each number.
432=576=1008=2⋅2⋅2⋅2⋅3⋅3⋅32⋅2⋅2⋅2⋅2⋅2⋅3⋅32⋅2⋅2⋅2⋅3⋅3⋅7(view steps on how to factor 432, 576 and 1008. )
Step 2 : Put a box around factors that are common for all numbers:
432=576=1008=2⋅2⋅2⋅2⋅3⋅3⋅32⋅2⋅2⋅2⋅2⋅2⋅3⋅32⋅2⋅2⋅2⋅3⋅3⋅7Step 3 : Multiply the boxed numbers together:
GCD=2⋅2⋅2⋅2⋅3⋅3=144
This solution can be visualized using a Venn diagram.
0,0
432
576
1008
2
2
2
2
3
3
3
2
2
7
The GCD equals the product of the numbers at the intersection.
This page was created using
GCD Calculator