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Discussion in 'The Pub' started by Bravus, Jan 4, 2011.

  1. This first one is bike-related, but many won't be, so this is probably the appropriate forum.


  2. e.g. 2011 is the sum of 11 *consecutive* primes. I'll leave figuring out which they are as an exercise for the class, with the hint that the final one is suggestive.
  3. 157+163+167+173+179+181+191+193+197+199+211
  4. If you'd planned ahead you could have had the trip meter reading 7777 as well.
  5. Heh, I struggle to plan 20 min ahead, so 6 months or so is right out of the question!
  6. I never get these... don't see the pattern ](*,)
  7. There isn't one. That's what makes prime numbers interesting and why, in spite of centuries of trying, noone has yet come up with a means of generating primes that will work in all cases.
  8. You don't need a pattern.
    I divided 2011 by 11, to get the average value of each prime: 182.82...
    I then chose the 5 primes either side of the one nearest the average (181).
  9. :-s
    spacial (sp?) maths and mechanics I understand, that I don't :shrug:

    ...I'm going to look at something shiny now... :D