Multiple Choice Questions on Which of the given four numbers is a prime ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

Which of the given four numbers is a prime ........

Quantitative Aptitude (RRB NTPC) Number System
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    Which of the given four numbers is a prime?

    77

    Incorrect Answer

    87

    Incorrect Answer

    83

    Correct Answer

    81

    Incorrect Answer
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    Explanation:
    Prime numbers are the number which is divisible by only 1 and itself.
    So, here 83 is prime number.

    By: Barka Mirza
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