A124184: prime factorization of 1?
Jon Awbrey
jawbrey at att.net
Thu Dec 7 20:38:23 CET 2006
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Positive integer n not divisible by any of its primes-factorization exponents.
<=>
If n has primes-factorization exponents, then n is not divisible by any of them.
.: 1 is included vacuously, since the protasis is false.
ja?
Dean Hickerson wrote:
>
> 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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