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Apply TodayCompute the euler's phi function of a large integer.

For more information about this topic please visit: https://en.wikipedia.org/wiki/Euler%27s_totient_function

With these constraints:

- n is a nonnegative integer greater than 0.
- "large integer" means 32bit integer
- vectorized Input

Examples:

- eulerphi(4) = 2
- eulerphi(11) = 10

20 correct solutions
39 incorrect solutions

Last solution submitted on Aug 20, 2013

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