The book is now available! 59
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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59 is the smallest prime you can express by using the digits 123456789 in order, and the operators + and * between any digits. For example, 1*2*3*4+5+6+7+8+9 = 59. Can you find another way to express it with the same rules? [Ward]


  Submitted: 2011-02-10 07:30:22;   Last Modified: 2011-02-10 07:31:03.

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