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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Segment Counting Versus Prime Counting in the Ulam Square
verfasst von : Leszek J. Chmielewski, Arkadiusz Orłowski, Grzegorz Gawdzik
Erschienen in: Intelligent Information and Database Systems
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Abstract
Points that correspond to prime numbers in the Ulam square form straight line segments of various lengths. It is shown that the relation between the number of the segments and the number of primes present in a given square steadily grows together with the growing values of the prime numbers in the studied range up to 25 009 991 and is close to double log. These observations were tested also on random dot images to see if the findings were not a result of merely the abundance of data. In random images the densities of the longer segments and the lengths of the longest ones are considerably smaller than those in the Ulam square, while for the shorter segments it is the opposite. This could lead to a cautious presumption that the structure of the set of primes might contain long-range relations which do not depend on scale.