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Divisible By 7
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The age old question has finally been answered. Is there an easy way to tell if a number is divisible by 7? Yes there is. The trick is not as easy as say 2, 3 or 9, but much simpler than doing the division yourself.
Watch this video to see how simple this trick is and why it works. Impress your friends at parties....
Watch this video to see how simple this trick is and why it works. Impress your friends at parties....