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 Previous Puzzle Next Puzzle Fractal Puzzle 15 Solve this fractal puzzle.  Click on "Scramble" below to start. This puzzle is INTERACTIVE in Java-enabled browsers.   Clicking on any cell on image will interchange its content with the content of the bottom cell.  Use this method repeatedly as you rearrange the pieces. Previous Puzzle Next Puzzle

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MARSENNE'S PRIME

Prime numbers are positive integers greater than one with no factors other than one and themselves.  They include 2, 3, 5, 7, 11, 13, 17 ...  With the exception of two, all the prime numbers are odd numbers.  Prime numbers of the form 2n-1 are called Marsenne's Prime.  Marin Mersenne (1588-1648) was a French monk who showed that the numbers 2n-1 were prime for n=2, 3, 5, 6, 13, 17, 19, 31, 67, 127 and 257.

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