Number Theory - The Order of an Integer Modulo n

Jamers328

Junior Member
Joined
Sep 20, 2007
Messages
62
Establish the following statement:
If a has order hk modulo n, then a^h has order k modulo n.
 
Doesn't this follow directly from exponent rules...?

Eliz.
 
I don't know... I am confused on how to write it up.

We can use Thm 8.3 to show it, which is:
If the a has order k mod n, then a^h has order k/gcd(h,k).
 
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