Nicomachus

(1967 JP )
CURRENT POSITION: 0 SCO 47
Incl: 4.12386
Eccent: 0.1073563
Period: 5.5386023207003 years
AU 3.1303055
Type: 0000

Discovery Chart

6.5.1967 05:33 El Leoncito 69w20 31s48 observations 1

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Named for Nicomachus of Gerasa, first-century arithmetician and numerologist who has been credited with the discovery that 496 and 8128 are the third and fourth perfect numbers, i.e., numbers that are the sums of their factors (including unity but excluding the numbers themselves). The perfection of 6 and 28 was known to even earlier Greek and Hindu mathematicians. In 1644, Mersenne showed that the sequence of perfect numbers is given by the product of 2n-1 and 2n-1 , where 2n-1 is prime---as then is n , which takes the values 2, 3, 5 and 7 for the first four cases. Name proposed by the second discoverer, following a suggestion by B. G. Marsden, who wrote the citation.

Named for Nicomachus of Gerasa, first-century arithmetician and numerologist who has been credited with the discovery that 496 and 8128 are the third and fourth perfect numbers, i.e., numbers that are the sums of their factors (including unity but excluding the numbers themselves). The perfection of 6 and 28 was known to even earlier Greek and Hindu mathematicians. In 1644, Mersenne {see planet  (8191)} showed that the sequence of perfect numbers is given by the product of 2n − 1 and 2n−1, where 2n − 1 is prime — as then is n, which takes the values 2, 3, 5 and 7 for the first four cases. (M 31612)

Name proposed by the second discoverer, following a suggestion by B. G. Marsden, who wrote the citation.

Avastatud: 6-5-1967 Avastamiskoht: El Leoncito Avastajad: Cesco, C. U., Klemola, A. R.

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