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Question
Find Greatest Common Divisor of 1348119852 and 1340719926, using prime factorization.
Answer
The GCD of given numbers is 66666.
Explanation
Step 1 : Find prime factorization of each number.
1348119852=1340719926=2⋅2⋅3⋅41⋅271⋅101112⋅3⋅7⋅13⋅13⋅17⋅41⋅271(view steps on how to factor 1348119852 and 1340719926. )
Step 2 : Put a box around factors that are common for all numbers:
1348119852=1340719926=2⋅2⋅3⋅41⋅271⋅101112⋅3⋅7⋅13⋅13⋅17⋅41⋅271Step 3 : Multiply the boxed numbers together:
GCD=2⋅3⋅41⋅271=66666
This solution can be visualized using a Venn diagram.
0,0
1348119852
1340719926
2
3
41
271
2
10111
7
13
13
17
The GCD equals the product of the numbers at the intersection.
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