Meaning of perfect number | Babel Free

Noun CEFR B2

Definitions

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

Deutsch ideale Zahl perfekte Zahl vollkommene Zahl

Español número perfecto

Suomi täydellinen luku

Français nombre parfait

Italiano numero perfetto

日本語完全数

한국어 완전수

Nederlands perfect getal

Português número perfeito

Русский соверше́нное число́

Svenska perfekt tal

“The factors of 6 are 1, 2, 3 and 6, and 1 + 2 + 3 = 6, so 6 is a perfect number.”

“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.”

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.