So, there is a method for finding if a number is divisible by 7.
Since I have studied mesoamerican languages, which includes base 20 numbering systems, I was curious to see what may happen by following the same rules for 7 in decimal....
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Since I have studied mesoamerican languages, which includes base 20 numbering systems, I was curious to see what may happen by following the same rules for 7 in decimal....