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单词 Smarandache Near-to-Primorial Function
释义

Smarandache Near-to-Primorial Function

is the smallest Prime such that , , or is divisible by , where is thePrimorial of . Ashbacher (1996) shows that only exists

1. If there are no square or higher powers in the factorization of , or

2. If there exists a Prime such that , where is the smallest power contained in the factorization of .
Therefore, does not exist for the Squareful numbers , 8, 9, 12, 16, 18, 20, 24, 25, 27, 28,... (Sloane's A013929). The first few values of , where defined, are 2, 2, 2, 3, 3, 3, 5, 7, ...(Sloane's A046026).

See also Primorial, Smarandache Function


References

Ashbacher, C. ``A Note on the Smarandache Near-To-Primordial Function.'' Smarandache Notions J. 7, 46-49, 1996.

Mudge, M. R. ``The Smarandache Near-To-Primorial Function.'' Abstracts of Papers Presented to the Amer. Math. Soc. 17, 585, 1996.

Sloane, N. J. A.A013929 andA046026 in ``An On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html.


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