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  1. The sum of first five prime numbers is:

    2. A.

    11
    B.

    18
    C.

    26
    D.

    28

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    Answer : Option D

    Explanation :

    Required sum = (2 + 3 + 5 + 7 + 11) = 28.

    Note: 1 is not a prime number.

    Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.

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