LXXXVII

It has been pointed out to me that eighty seven is my go to number. It’s what I use when I’m dramatising anything (my age, the amount of miles I ran, how many eggs I needed to make ALL those pancakes!).

So, we did some research on the number eighty seven. Now, I am not a Mathemagician. I’m pretty sure I struggled with adding two and three together the other day (in front of someone really clever and quite good at maths, the shame!) and I have been known to count using my fingers so, I have pretty much lifted the following from clever people who put it on the internet….

  • 87 is the natural number following 86 and preceding 88
  • In Roman numerals 87 looks like this LXXXVII
  • Prime Factorisation is 3 x 29
  • 87 is the sum of the squares of the first four primes. It is also the sum of the sum of divisors of the first ten integers.
  • 87 is an odd number
  • 87 cannot be written as a sum of 3 sqaures
  • 87 in binary code appears as 0b1010111
  • I was 3 years old in ‘87
  • The number 87 is superstitiously unlucky in Australia when playing cricket and is referred to as “The Devil’s Number”. This is because 87 is 13 runs short of a century.
  • The 87 photographic filter blocks visible light allowing only infrared light to pass
  • The atomic number of Francium (chemical element with symbolΒ Fr) is 87
  • 87 is the model number of Junkers Ju 87 (a two-man (pilot and rear gunner) German dive bomber and ground-attack aircraft designed by Hermann Pohlmann which first flew in 1935 and made its combat debut in 1936 as part of the Luftwaffe’s Condor Legion during the Spanish Civil War)
  • In model railroading, the ratio of the popular H0 scale is 1:87. Proto:87 scale claims to offer precise proportions of wheels and tracks of real railroads.
  • Vault 87 is a main location in the game Fallout 3
  • Wenger Swiss Army Knife version XXL, listed in the Guinness Book of World Records as the world’s most multi-functional penknife with 87 tools

So! Now, you can’t say my blog isn’t educational….and if you need me for your table quiz team for the numbers round, leave a comment below!

Sources: Wiki, Wolfram Alpha

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11 responses to “LXXXVII

  1. I really liked this. I could write a similar post about the number 153, it’s my go-to for everything and follows me around a lot. πŸ™‚

    Like

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