Simple Multiplication



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The required number consists of 16 digits and is 3,529,411,764,705,882. It may be multiplied by 3 and divided by 2, by simply moving the 3 from one end of the row to the other. If you want a loner number, you can increase this one to any extent by repeating the sixteen digits in the same order.

Posted: February 28, 2009
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