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If N appears in the multiplication table of n, it is a multiple of n; it follows from this that n is a factor of N. For example, 18 is a multiple of 3 since it appears in the multiplication table of 3, and 3 is a factor of 18 for the same reason.
Yellow and the diamond shape represent Brazil's mineral wealth. The motto Ordem e Progresso means ‘Order and Progress’. Green stands for the vast forests. Effective date: 15 November 1889.
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