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Thread: Consider the sequence of prime numbers 2, 3, 5, 7, 11, 13, 17, .... Let pi

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  1. #1
    Join Date
    Aug 2007
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    6

    Default Consider the sequence of prime numbers 2, 3, 5, 7, 11, 13, 17, .... Let pi

    denote the ith number of the sequen Consider the sequence of prime numbers 2, 3, 5, 7, 11, 13, 17, .... Let pi denote the ith number of the sequence, For example, p1=2, p2=3, p3=5, .... For i>0, Let
    Pi = p1 × p2 × p3 × …×pi +1

    Disprove the statement “Pi is a prime for all i>0.”.

  2. #2

    Default

    Hello
    ans is =19
    prime number is only diveded it self 1 to 100 ma 25 prime number.

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