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questionedithistorytranslations
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flag English language

What is the smallest perfect number?
6
28
2
128
A perfect number is a positive integer that is equal to the sum of its proper positive divisors, excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself).
Ninjai
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wikipedia → Perfect number
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flag Polish language

Najmniejsza liczba doskonała to
6
28
2
128
liczba doskonała to liczba naturalna, która jest sumą wszystkich swych dzielników właściwych (to znaczy od niej mniejszych
Erzac dasz rade pokoasz ksene
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wikipedia → Liczba doskonała
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flag German language

Welche Zahl ist die kleinste vollkommene Zahl??
6
28
2
128
Als vollkommene Zahl (auch perfekte Zahl) bezeichnet man eine natürliche Zahl, die gleich der Summe σ ∗ ( n ) {\displaystyle \sigma ^{*}(n)} aller ihrer (positiven) Teiler ausser sich selbst ist.
Ts
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wikipedia → Vollkommene Zahl
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