Monday, September 29, 2008

125

125 is a perfect cube, 53.

125 is the smallest cube that is also the sum of two squares in two different ways: 125 = 112 + 22 = 102 + 52.

53 – 27 = 5 – 2. The only known matching pattern is 133 – 37 = 13 – 3.

125 is the hypotenuse of a primitive Pythagorean triple: 1252 = 442 + 1172.


Space Shuttle mission STS-125 was the final servicing mission to the Hubble Space Telescope.

Source: The Penguin Dictionary of Curious and Interesting Numbers, rev. ed., by David Wells.
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2 comments:

  1. hoary hacksSeptember 29, 2008 at 2:45 PM

    5^3 - 2^7 = 125 - 128 = -3
    which is not same as 5 - 2 = 3

    ReplyDelete
  2. UnknownSeptember 30, 2008 at 12:11 PM

    take the modulus of it then,, don't be such a whinger haha

    ReplyDelete