Saturday 8 March 2014

105 Days to go!


OK, so things are starting to get real, serious, scary! 105 days, only 105 days.

It does not seem like a week ago that I was talking about 222 Days and making fun of Mathematicians. But whilst on the subject, Wikipedia has this to say about the number 105.

105 is a triangular number, a dodecagonal number and a Zeisel number. It is a sphenic number, and is the product of three consecutive prime numbers. 105 is the double factorial of 7. It is also the sum of the first five square pyramidal numbers.105 comes in the middle of the prime quadruplet (101, 103, 107, 109). The only other such odd numbers less than a thousand are 15, 195 and 825. 105 is also a pseudoprime to the prime bases 13, 29, 41, 43, 71, 83 and 97. The distinct prime factors of 105 add up to 15, and so do those of 104, hence the two numbers form a Ruth-Aaron pair under the first definition.105 is also a number n for which n - 2^k is prime, for 0 < k < log_2(n). (This even works up to k = 8, ignoring the negative sign.)105 is the smallest integer such that the factorization of x^n-1 over Q includes coefficients other than \pm 1.
The Hitchhikers Guide to the Galaxy as this to say* about Mathematicians "Like physicists, but slightly less interesting, and on no circumstances should you talk to one whilst operating machinery or driving".

Despite the mild panic, preparation is going well. We're jogging 3 times a week (I'm currently running for 20 mins, but aiming to get to 30 mins and then 5k in the next few weeks) and we're doing short/medium walks on a weekly basis.

Fundraising is a bit slow at the moment. +Beccy Fairbank wants to rasie at least £500, and at the moment were well under £100. But we'll keep trying. (If you can spare £1, $1 or 1 whatever, please click the button below)

M


*This is in fact apocryphal or at least wildly inaccurate.

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