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La magie des chiffres
111 111 111*111 111 111 = 12345678987654321
12321 = 111 * 111 = 12321
1367631 = 111 * 111 * 111 = 1367631666 = 13+23+33+43+53+63+53+43+33+23+13
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Commentaires
111 111 111*111 111 111 = 12345678987654321
12321 = 111 * 111 = 12321
1367631 = 111 * 111 * 111 = 1367631
666 = 13+23+33+43+53+63+53+43+33+23+13