Wissen macht Ah! - Befreundete Zahlen

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Uploaded by on May 28, 2010

Aus "Wunderbare Welt der Zahlen". 220 und 284 haben eine Besonderheit - sie sind "befreundet". Was das bedeutet, erklären Shary und Ralph.

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  • DER ERSTE SATZ IST EINE LÜGE :D

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  • "Ja, aber unsichtbare Freunde zählen nicht." Gemein xD

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