1. Convert the number to binary symbols to express the number as a series of one or two digits. Usually these digits are 1 or 0, but you may represent them with any two other symbols
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Sometimes the set of primes is denoted by P. However, this notation is not standard enough that you can use it without clarifying it, such as by saying "we denote the set of
http://www.quora.com/Mathematics/Whatisthesymbo...

e is the symbol of the number e.
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The number ten is the start of a whole new order of numbers and the . Thus ten
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