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单词 Heximal
释义

Heximal

中文百科

六进制 Senary

(重定向自Heximal)

六进制是以6为底数的进位制。

六进制对于研究素数是很有用的,因为所有的素数,除了2和3以外,个位数都是1或5。在六进制中,最初的几个素数为:

2_6,3_6,5_6,11_6,15_6,21_6,25_6,31_6,35_6,45_6,51_6,
101_6,105_6,111_6,115_6,125_6,\ldots

也就是说,对于所有除了2和3以外的素数p都有p\mod 6 = 1p\mod 6 = 5。另外,除了6以外,所有的完全数在六进制中都以44结尾。

英语百科

Senary 六进制

(重定向自Heximal)
34senary = 22decimal, in senary finger counting
4
Zwei Würfel können zur senären Codierung dienen

The senary numeral system (also known as base-6 or heximal) has six as its base. It has been adopted independently by a small number of cultures. Like decimal, it is a semiprime, though being the product of the only two consecutive numbers that are both prime (2 and 3) it has a high degree of mathematical properties for its size. As six is a superior highly composite number, many of the arguments made in favor of the duodecimal system also apply to this base.

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