Question 282014
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How can you have a "common" divisor, greatest or otherwise, of a single number?  The idea of a common divisor is that two or more numbers share a divisor -- which is to say, they have the divisor in common.  Sort of like saying that a common trait of redheads is that they have red hair.


The greatest divisor of any number is itself, but I suspect that trivial fact of being decidedly unhelpful.


You are going to have to be a little clearer about what it is you want.  If you have given us a textbook or worksheet question verbatim, then go back to your teacher and get an explanation.  DO NOT leave or give up until you understand what is being said.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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