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Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347)?

Correct Answer: (47 + 43)

Explanation:

When n is odd, ( x n + a n ) is always divisible by ( x + a ).

∴Each one of (4743 + 4343) and (4747 + 4347) is divisible by (47 + 43).


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