A124184: prime factorization of 1?

Dean Hickerson dean at math.ucdavis.edu
Thu Dec 7 18:25:36 CET 2006


zak seidov wrote:

> In A124184, shouldn't we omit 1 (I omit it, while Leroy includes)?

No, Leroy is correct.

A124184 is defined as:

    Positive integers not divisible by any of their own prime-factorization
    exponents.

Is 1 divisible by any of its prime-factorization exponents?  No, since it
doesn't have any.  So it does belong in the sequence.

Dean Hickerson
dean at math.ucdavis.edu






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