Math Question

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• • The_Walrus ^Pro
  • http://www.doctor-dark.co.uk
  • 2008-06-20 @ 23:45:34

  Is that seventeen distinct numbers?

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  • • The_Walrus ^Pro
    • http://www.doctor-dark.co.uk
    • 2008-06-20 @ 23:50:21

    If so, then 19448.

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    • • michscan
      • 2008-06-20 @ 23:59:36

      thanks, a million...

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      • • michscan
        • 2008-06-20 @ 23:58:34

        how do you work out the answer?
        

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  • • michscan
    • 2008-06-20 @ 23:57:15

    Yes they are; actually there are 18 numbers. Here they are:
    
    They must be diffrent combinations; each with 7 different numbers...
    
    5, 7, 11, 12, 14, 19, 22, 23, 24, 25, 27, 29, 32, 34, 36, 39, 40, 41

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• • homeworkhelpanytime (Visitor)
  • http://homeworkhelpanytime.com
  • 2008-06-21 @ 00:21:15

  17 P 7 = L17 / L10
  
  = 17*16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
  = 355687428096000
  

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• • cj592 ^Pro
  • 2008-07-08 @ 00:59:46

  17p7
  17 * 16 * 15 * 14 * 13 * 12 * 11
  = 98017920

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