English

Noun
perfect number (plural perfect numbers)

1. number theory A number that is the sum of all of its divisors except itself.

#:The factors of 28 are 1, 2, 4, 7, 14 and 28, and 1 + 2 + 4 + 7 + 14 = 28, so 28 is a perfect number.

Translations
Catalan: nombre perfecte
Dutch: perfect getal <!--gender?-->
French: nombre parfait m
German: vollkommene Zahl f, perfekte Zahl f, ideale Zahl f
Japanese: ��� (������; kanzen-su)
Norwegian: perfekt tall <!--gender?-->
Slovak: dokonalé �íslo n
Spanish: número perfecto m
Swedish: perfekt tal n

See also
abundant number
amicable numbers
deficient number
Mersenne prime
sociable numbers
w:Perfect_number|Wikipedia article on perfect numbers

fr:perfect number
sv:perfect number

• 2007-06-18 17:04 - AutoFormat - gender -[[nombre parfait]] ''m'' +[[nombre parfait]] {{m}}, gender -[[vollkommene Zahl]] ''f'', [[perfekte Zahl]] ''f'', [[ideale Zahl]] ''f'' +[[vollkommene Zahl]] {{f}}, [[perfekte Zahl]] {{f}}, [[ideale Zahl]] {{f}}, gender -[[dokonalé číslo]]

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