SOLUTION: how do i prove that 7 is an irrational number?

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Question 273707: how do i prove that 7 is an irrational number?
Found 3 solutions by Alan3354, amalm06, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
You can't, it isn't.

Answer by amalm06(224) About Me  (Show Source):
You can put this solution on YOUR website!
7 is rational, since 7=7/1. However, sqrt%287%29 is irrational.




Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
The number  7  (seven,  SEVEN)  is an integer,  and therefore rational number.


If you are interested to learn on how to prove irrationality   sqrt%287%29,   then look into the lesson
    - Proving irrationality of some real numbers
in this site.