(±0.2 Billion Years.): Mathmagical!

For my friend John D.

14-billion-years-later:

Just a list of cool little mathematical tricks and other cool things I wanted to make.

Every number divisible by three (to give whole numbers) has a digit sum that is a multiple of 3.
Eg. 186/3=62 (1+8+6=15, 15/3=5 and 1+5=6, 6/3=2)

For dividing by four the last two digits have to either by 00…

Source: 14-billion-years-later

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    my friend John D.
  12. chocolatepearls said: You made my brain hurt. Just sayin’. =P
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