hello.

there is a problem :

suppose b is member of N (Natural Numbers) and q is prime number that doesn't divide b . proof that there is n member of N (Natural Numbers) that http://latex.codecogs.com/gif.latex?n|(q-1) and http://latex.codecogs.com/gif.latex?q|(b^{(q-1)/n}-1)

How to proof this problem?

can any one proof that please?

any help appreciated.