Secretly, many people are little superstitious about numbers. Thirteen is unlucky; for some, Friday the 13th is an inauspicious day and there should never be 13 at table. On the other hand, three is a lucky – except that bad luck always comes in threes.
Many people also have their own personal lucky number: the number of the house they were married, or a number that has proved lucky before and may bring more good fortune in the future.

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