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Números multiplicados que den 81

User Eocron
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Los números multiplicados que dan 81 son 9 y 9, o -9 y -9 si se permite el uso de números negativos. También se puede obtener 81 multiplicando 3 por sí mismo dos veces, es decir, 3 x 3 x 3 = 27 x 3 = 81.

User Tom DeGisi
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