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i got 32 can any one verify?
 
i got 32 can any one verify?
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If GF(81)* has 80 elements, <math>\phi(80)=32</math>.

Revision as of 19:29, 10 December 2008

Use Euler's phi function to save yourself the trouble of counting.

...or count to save yourself the trouble of using Euler's phi function... just kidding :-P

im still confused on this one, can you explain a little more about how you found your answer

i got 32 can any one verify?

If GF(81)* has 80 elements, $ \phi(80)=32 $.

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Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

Dr. Paul Garrett