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Four options have been given out of which three are alike in some manner, while one is different. Choose the odd one.
1. 6388
2. 3568
3. 1238
4. 2348

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Correct Answer - Option 4 : 2348

Sum of digits of 2348 is 17, which is a prime number.

Sum of digits of option 1, 2 and 3 is not a prime number.

Hence, option 4 is the correct answer.

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