Monthly archive for March2008

Day 52

52 is an untouchable number, since it is never the sum of proper divisors of any number. Finally I touched dry rock again. What a feeling. I’ve had 4 rest days partly due to rain but mainly due to my skin being bruised and thinner…

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Day 47

47 is prime and the smallest number n for which 666n has a digit sum of 666. Today I made a number of mistakes. I am frustrated with myself that I didn’t see them coming, but I am happy that I’m not foolish enough to…

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Day 44

44 is the smallest number which is the sum of a reversible pair of non-palindromic primes, 13 + 31. I kind of felt like I needed a bit of a rest so I had 2 days off, but Friday I ended up doing 30min on…

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Day 41

Forty-one is prime in so many ways! It is regularly prime, it is the 12th supersingular prime, a Sophie Germain prime and a Newman-Shanks-Williams prime. That is PRIME! Lying isn’t a good thing. Making bold statements about the future is a dangerous game that you…

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Day 39 and 40

39 is the smallest number whose sum of digits is larger than that of its square. 40 is a boring number, but in English, forty is the only number whose constituent letters appear in alphabetical order. Now I’ve been here as long as Jesus was…

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Day 36

36 is the smallest number (besides 1) which is both square and triangular. The weather always plays a part when making plans for rock climbing. Yesterday’s forecast predicted alright weather for today, bar the blazing heat that would be descending upon us. Of course, everything…

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Day 34

34 is the smallest number to be surrounded by numbers with the same number of divisors as it has. The last few days have been spent driving to crags, putting on climbing shoes, and then watching as the heavens open and rain drenches the perfect…

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Day 31

31 is the third Mersenne prime! RAD! Late lastnight Fontainebleau felt a small tremble when the Italian Stallion, Lorenzo, rolled into town. After a whirlwind tour of Britain he was ready for some sandstone action. His first nights decent sleep saw him awake and ready…

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Day 29

29 is the smallest multi-digit prime whose product of digits of its cube is also a cube! Just a short entry, because rainshowers were intermittent all day so only the smallest amount of climbing was done. We went over to have a look at L’Homme…

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Day 26

26 is the only number between a square number and a cube number, which was first proved by Pierre de Fermat (genius mathematician!). 26 is also the maximum number of moves needed to solve a rubiks cube, which is neat. I used to be able…

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