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    Question

    Which of the following is a prime

    number?
    A 409 Correct Answer Incorrect Answer
    B 429 Correct Answer Incorrect Answer
    C 494 Correct Answer Incorrect Answer
    D 513 Correct Answer Incorrect Answer

    Solution

    429 = 33┬а 13 So it is not a prime number. 494 = 26┬а 19 So it is not a prime number. 513 = 27┬а 19 So it is not a prime number. 409 is a prime number because it is not divisible by any number except 1 & itself. 737 = 67┬а 11 So it is not a prime number.

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